70642761825 has 24 divisors (see below), whose sum is σ = 118274473600. Its totient is φ = 37199223360.

The previous prime is 70642761823. The next prime is 70642761857. The reversal of 70642761825 is 52816724607.

It is not a de Polignac number, because 70642761825 - 2¹ = 70642761823 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70642761823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5955490 + ... + 5967339.

Almost surely, 2^70642761825 is an apocalyptic number.

70642761825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70642761825 is a deficient number, since it is larger than the sum of its proper divisors (47631711775).

70642761825 is a wasteful number, since it uses less digits than its factorization.

70642761825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922921 (or 11922916 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 70642761825 in words is "seventy billion, six hundred forty-two million, seven hundred sixty-one thousand, eight hundred twenty-five".