791640483387 has 32 divisors (see below), whose sum is σ = 1176159667200. Its totient is φ = 470265409152.

The previous prime is 791640483383. The next prime is 791640483421. The reversal of 791640483387 is 783384046197.

791640483387 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 791640483387 - 2² = 791640483383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 791640483387.

It is not an unprimeable number, because it can be changed into a prime (791640483383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5473914 + ... + 5616672.

It is an arithmetic number, because the mean of its divisors is an integer number (36754989600).

Almost surely, 2^791640483387 is an apocalyptic number.

791640483387 is a deficient number, since it is larger than the sum of its proper divisors (384519183813).

791640483387 is a wasteful number, since it uses less digits than its factorization.

791640483387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147707.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 791640483387 in words is "seven hundred ninety-one billion, six hundred forty million, four hundred eighty-three thousand, three hundred eighty-seven".