787139378472 has 64 divisors (see below), whose sum is σ = 2021835326400. Its totient is φ = 255187169280.

The previous prime is 787139378471. The next prime is 787139378489. The reversal of 787139378472 is 274873931787.

787139378472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×787139378472² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (787139378471) 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, 2080072 + ... + 2429192.

It is an arithmetic number, because the mean of its divisors is an integer number (31591176975).

Almost surely, 2^787139378472 is an apocalyptic number.

It is an amenable number.

787139378472 is an abundant number, since it is smaller than the sum of its proper divisors (1234695947928).

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

787139378472 is a wasteful number, since it uses less digits than its factorization.

787139378472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351706 (or 351702 counting only the distinct ones).

The product of its digits is 99574272, while the sum is 66.

It can be divided in two parts, 787139 and 378472, that added together give a palindrome (1165611).

The spelling of 787139378472 in words is "seven hundred eighty-seven billion, one hundred thirty-nine million, three hundred seventy-eight thousand, four hundred seventy-two".