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63701070641 = 1323563937781
BaseRepresentation
bin111011010100111000…
…010011001100110001
320002102102210200012122
4323110320103030301
52020424433230031
645132555004025
74413400111055
oct732470231461
9202372720178
1063701070641
112501965922a
1210419439615
136012467210
143124231c65
1519cc62b47b
hexed4e13331

63701070641 has 16 divisors (see below), whose sum is σ = 71598401280. Its totient is φ = 56232960960.

The previous prime is 63701070619. The next prime is 63701070661. The reversal of 63701070641 is 14607010736.

63701070641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63701070641 - 214 = 63701054257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63701070611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667171 + ... + 1704951.

It is an arithmetic number, because the mean of its divisors is an integer number (4474900080).

Almost surely, 263701070641 is an apocalyptic number.

It is an amenable number.

63701070641 is a deficient number, since it is larger than the sum of its proper divisors (7897330639).

63701070641 is a wasteful number, since it uses less digits than its factorization.

63701070641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43456.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 63701070641 in words is "sixty-three billion, seven hundred one million, seventy thousand, six hundred forty-one".

Divisors: 1 13 23 299 5639 37781 73307 129697 491153 868963 1686061 11296519 213047059 2769611767 4900082357 63701070641