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85470534997951 = 478698072090719
BaseRepresentation
bin10011011011110000101000…
…111000001001011110111111
3102012121220101112120200010111
4103123300220320021132333
542200322123424413301
6501440342143050451
724001020351303115
oct2333605070113677
9365556345520114
1085470534997951
1125262939880a34
1297049192a0a27
13388cab579909c
141716b201bbab5
159d34410e2551
hex4dbc28e097bf

85470534997951 has 8 divisors (see below), whose sum is σ = 87289199124480. Its totient is φ = 83651876792568.

The previous prime is 85470534997927. The next prime is 85470534997963. The reversal of 85470534997951 is 15979943507458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85470534997951 - 213 = 85470534989759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85470534997051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39835570 + ... + 41926288.

It is an arithmetic number, because the mean of its divisors is an integer number (10911149890560).

Almost surely, 285470534997951 is an apocalyptic number.

85470534997951 is a deficient number, since it is larger than the sum of its proper divisors (1818664126529).

85470534997951 is a wasteful number, since it uses less digits than its factorization.

85470534997951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960573.

The product of its (nonzero) digits is 1714608000, while the sum is 76.

The spelling of 85470534997951 in words is "eighty-five trillion, four hundred seventy billion, five hundred thirty-four million, nine hundred ninety-seven thousand, nine hundred fifty-one".

Divisors: 1 47 869807 2090719 40880929 98263793 1818522021233 85470534997951