70861907601 has 27 divisors (see below), whose sum is σ = 103623014001. Its totient is φ = 46663619904.

The previous prime is 70861907581. The next prime is 70861907617. The reversal of 70861907601 is 10670916807.

The square root of 70861907601 is 266199.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 358913025 + 70502994576 = 18945^2 + 265524^2 .

It is not a de Polignac number, because 70861907601 - 2¹¹ = 70861905553 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (70861907681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71074635 + ... + 71075631.

Almost surely, 2^70861907601 is an apocalyptic number.

70861907601 is the 266199-th square number.

70861907601 is the 133100-th centered octagonal number.

It is an amenable number.

70861907601 is a deficient number, since it is larger than the sum of its proper divisors (32761106400).

70861907601 is an frugal number, since it uses more digits than its factorization.

70861907601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 70861907601 in words is "seventy billion, eight hundred sixty-one million, nine hundred seven thousand, six hundred one".