78367020459 has 32 divisors (see below), whose sum is σ = 128628132864. Its totient is φ = 41328144000.

The previous prime is 78367020451. The next prime is 78367020467. The reversal of 78367020459 is 95402076387.

It is an interprime number because it is at equal distance from previous prime (78367020451) and next prime (78367020467).

It is not a de Polignac number, because 78367020459 - 2³ = 78367020451 is a prime.

It is a super-2 number, since 2×78367020459² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78367020451) 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, 1475682 + ... + 1527864.

It is an arithmetic number, because the mean of its divisors is an integer number (4019629152).

Almost surely, 2^78367020459 is an apocalyptic number.

78367020459 is a deficient number, since it is larger than the sum of its proper divisors (50261112405).

78367020459 is a wasteful number, since it uses less digits than its factorization.

78367020459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57707.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 78367020459 in words is "seventy-eight billion, three hundred sixty-seven million, twenty thousand, four hundred fifty-nine".