864500009403 has 32 divisors (see below), whose sum is σ = 1221951532032. Its totient is φ = 542903212800.

The previous prime is 864500009363. The next prime is 864500009489. The reversal of 864500009403 is 304900005468.

864500009403 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 864500009403 - 2²⁰ = 864498960827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864500009603) 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, 128851 + ... + 1321212.

It is an arithmetic number, because the mean of its divisors is an integer number (38185985376).

Almost surely, 2^864500009403 is an apocalyptic number.

864500009403 is a deficient number, since it is larger than the sum of its proper divisors (357451522629).

864500009403 is a wasteful number, since it uses less digits than its factorization.

864500009403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450275.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 864500009403 in words is "eight hundred sixty-four billion, five hundred million, nine thousand, four hundred three".