78002631479 has 16 divisors (see below), whose sum is σ = 84426115968. Its totient is φ = 71785930752.

The previous prime is 78002631463. The next prime is 78002631517. The reversal of 78002631479 is 97413620087.

It is a cyclic number.

It is not a de Polignac number, because 78002631479 - 2⁴ = 78002631463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78002631079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832007 + ... + 920999.

It is an arithmetic number, because the mean of its divisors is an integer number (5276632248).

Almost surely, 2^78002631479 is an apocalyptic number.

78002631479 is a deficient number, since it is larger than the sum of its proper divisors (6423484489).

78002631479 is a wasteful number, since it uses less digits than its factorization.

78002631479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90154.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 78002631479 in words is "seventy-eight billion, two million, six hundred thirty-one thousand, four hundred seventy-nine".