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70061717711 = 445071574173
BaseRepresentation
bin100000101000000000…
…0001111100011001111
320200211201111000122202
41001100000033203033
52121441244431321
652104053432115
75030123526446
oct1012000174317
9220751430582
1070061717711
1127793016547
12116b363b63b
1367b71763cb
143568cbdd5d
151c50c5270b
hex105000f8cf

70061717711 has 4 divisors (see below), whose sum is σ = 70063336392. Its totient is φ = 70060099032.

The previous prime is 70061717683. The next prime is 70061717749. The reversal of 70061717711 is 11771716007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11771716007 = 71165798817.

It is a cyclic number.

It is not a de Polignac number, because 70061717711 - 26 = 70061717647 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 (70061717771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742580 + ... + 831593.

It is an arithmetic number, because the mean of its divisors is an integer number (17515834098).

Almost surely, 270061717711 is an apocalyptic number.

70061717711 is a deficient number, since it is larger than the sum of its proper divisors (1618681).

70061717711 is a wasteful number, since it uses less digits than its factorization.

70061717711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618680.

The product of its (nonzero) digits is 14406, while the sum is 38.

The spelling of 70061717711 in words is "seventy billion, sixty-one million, seven hundred seventeen thousand, seven hundred eleven".

Divisors: 1 44507 1574173 70061717711