787401976780 has 48 divisors (see below), whose sum is σ = 1753846226496. Its totient is φ = 295919861760.

The previous prime is 787401976771. The next prime is 787401976789. The reversal of 787401976780 is 87679104787.

It is an interprime number because it is at equal distance from previous prime (787401976771) and next prime (787401976789).

It is not an unprimeable number, because it can be changed into a prime (787401976789) 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, 1810656 + ... + 2203015.

It is an arithmetic number, because the mean of its divisors is an integer number (36538463052).

Almost surely, 2^787401976780 is an apocalyptic number.

It is an amenable number.

787401976780 is an abundant number, since it is smaller than the sum of its proper divisors (966444249716).

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

787401976780 is a wasteful number, since it uses less digits than its factorization.

787401976780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014274 (or 4014272 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 64.

The spelling of 787401976780 in words is "seven hundred eighty-seven billion, four hundred one million, nine hundred seventy-six thousand, seven hundred eighty".