78002307764 has 12 divisors (see below), whose sum is σ = 136622642688. Its totient is φ = 38967267000.

The previous prime is 78002307739. The next prime is 78002307781. The reversal of 78002307764 is 46770320087.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8466542 + ... + 8475749.

It is an arithmetic number, because the mean of its divisors is an integer number (11385220224).

Almost surely, 2^78002307764 is an apocalyptic number.

It is an amenable number.

78002307764 is a deficient number, since it is larger than the sum of its proper divisors (58620334924).

78002307764 is a wasteful number, since it uses less digits than its factorization.

78002307764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16943446 (or 16943444 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 78002307764 in words is "seventy-eight billion, two million, three hundred seven thousand, seven hundred sixty-four".