784632400923 has 32 divisors (see below), whose sum is σ = 1242034329600. Its totient is φ = 431089255296.

The previous prime is 784632400913. The next prime is 784632400957. The reversal of 784632400923 is 329004236487.

It is not a de Polignac number, because 784632400923 - 2⁶ = 784632400859 is a prime.

It is a super-2 number, since 2×784632400923² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (784632400913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549836 + ... + 2840937.

It is an arithmetic number, because the mean of its divisors is an integer number (38813572800).

Almost surely, 2^784632400923 is an apocalyptic number.

784632400923 is a deficient number, since it is larger than the sum of its proper divisors (457401928677).

784632400923 is a wasteful number, since it uses less digits than its factorization.

784632400923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391051.

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 784632400923 in words is "seven hundred eighty-four billion, six hundred thirty-two million, four hundred thousand, nine hundred twenty-three".