78051458684 has 12 divisors (see below), whose sum is σ = 136595118408. Its totient is φ = 39024282000.

The previous prime is 78051458621. The next prime is 78051458687. The reversal of 78051458684 is 48685415087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78051458687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235607 + ... + 460014.

It is an arithmetic number, because the mean of its divisors is an integer number (11382926534).

Almost surely, 2^78051458684 is an apocalyptic number.

It is an amenable number.

78051458684 is a deficient number, since it is larger than the sum of its proper divisors (58543659724).

78051458684 is a wasteful number, since it uses less digits than its factorization.

78051458684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723676 (or 723674 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 56.

The spelling of 78051458684 in words is "seventy-eight billion, fifty-one million, four hundred fifty-eight thousand, six hundred eighty-four".