78934677740 has 24 divisors (see below), whose sum is σ = 169617774480. Its totient is φ = 30839594688.

The previous prime is 78934677709. The next prime is 78934677751. The reversal of 78934677740 is 4777643987.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45891395 + ... + 45893114.

It is an arithmetic number, because the mean of its divisors is an integer number (7067407270).

Almost surely, 2^78934677740 is an apocalyptic number.

It is an amenable number.

78934677740 is an abundant number, since it is smaller than the sum of its proper divisors (90683096740).

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

78934677740 is a wasteful number, since it uses less digits than its factorization.

78934677740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91784561 (or 91784559 counting only the distinct ones).

The product of its (nonzero) digits is 49787136, while the sum is 62.

The spelling of 78934677740 in words is "seventy-eight billion, nine hundred thirty-four million, six hundred seventy-seven thousand, seven hundred forty".