70451236648 has 32 divisors (see below), whose sum is σ = 144941416200. Its totient is φ = 31902444288.

The previous prime is 70451236621. The next prime is 70451236651. The reversal of 70451236648 is 84663215407.

It can be written as a sum of positive squares in 4 ways, for example, as 67684266244 + 2766970404 = 260162^2 + 52602^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70451236598 and 70451236607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6385203 + ... + 6396226.

Almost surely, 2^70451236648 is an apocalyptic number.

It is an amenable number.

70451236648 is an abundant number, since it is smaller than the sum of its proper divisors (74490179552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70451236648 is a wasteful number, since it uses less digits than its factorization.

70451236648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781501 (or 12781497 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 70451236648 in words is "seventy billion, four hundred fifty-one million, two hundred thirty-six thousand, six hundred forty-eight".