78002631480 has 128 divisors (see below), whose sum is σ = 246700339200. Its totient is φ = 19691139072.

The previous prime is 78002631463. The next prime is 78002631517. The reversal of 78002631480 is 8413620087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122041 + ... + 413399.

It is an arithmetic number, because the mean of its divisors is an integer number (1927346400).

Almost surely, 2^78002631480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78002631480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123350169600).

78002631480 is an abundant number, since it is smaller than the sum of its proper divisors (168697707720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78002631480 is a wasteful number, since it uses less digits than its factorization.

78002631480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291493 (or 291489 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 78002631480 in words is "seventy-eight billion, two million, six hundred thirty-one thousand, four hundred eighty".