787078307972 has 48 divisors (see below), whose sum is σ = 1516635637440. Its totient is φ = 354423081600.

The previous prime is 787078307933. The next prime is 787078308041. The reversal of 787078307972 is 279703870787.

It is a junction number, because it is equal to n+sod(n) for n = 787078307899 and 787078307908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46325663 + ... + 46342649.

It is an arithmetic number, because the mean of its divisors is an integer number (31596575780).

Almost surely, 2^787078307972 is an apocalyptic number.

It is an amenable number.

787078307972 is a deficient number, since it is larger than the sum of its proper divisors (729557329468).

787078307972 is a wasteful number, since it uses less digits than its factorization.

787078307972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26772 (or 26770 counting only the distinct ones).

The product of its (nonzero) digits is 58084992, while the sum is 65.

The spelling of 787078307972 in words is "seven hundred eighty-seven billion, seventy-eight million, three hundred seven thousand, nine hundred seventy-two".