7932978054 has 16 divisors (see below), whose sum is σ = 17628840240. Its totient is φ = 2644326000.

The previous prime is 7932978017. The next prime is 7932978061. The reversal of 7932978054 is 4508792397.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 146907001 = 7932978054 / (7 + 9 + 3 + 2 + 9 + 7 + 8 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73453447 + ... + 73453554.

It is an arithmetic number, because the mean of its divisors is an integer number (1101802515).

Almost surely, 2^7932978054 is an apocalyptic number.

7932978054 is an abundant number, since it is smaller than the sum of its proper divisors (9695862186).

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

7932978054 is a wasteful number, since it uses less digits than its factorization.

7932978054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146907012 (or 146907006 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The square root of 7932978054 is about 89067.2670176873. The cubic root of 7932978054 is about 1994.3991678139.

The spelling of 7932978054 in words is "seven billion, nine hundred thirty-two million, nine hundred seventy-eight thousand, fifty-four".