78030503031 has 32 divisors (see below), whose sum is σ = 116008130560. Its totient is φ = 46329148800.

The previous prime is 78030503017. The next prime is 78030503051. The reversal of 78030503031 is 13030503087.

It is not a de Polignac number, because 78030503031 - 2⁶ = 78030502967 is a prime.

It is a super-2 number, since 2×78030503031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78030503031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78030503051) 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, 302685 + ... + 497673.

It is an arithmetic number, because the mean of its divisors is an integer number (3625254080).

Almost surely, 2^78030503031 is an apocalyptic number.

78030503031 is a deficient number, since it is larger than the sum of its proper divisors (37977627529).

78030503031 is a wasteful number, since it uses less digits than its factorization.

78030503031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195367.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 78030503031 in words is "seventy-eight billion, thirty million, five hundred three thousand, thirty-one".