54866620378 has 48 divisors (see below), whose sum is σ = 88216922880. Its totient is φ = 25585271712.

The previous prime is 54866620357. The next prime is 54866620399. The reversal of 54866620378 is 87302666845.

It is an interprime number because it is at equal distance from previous prime (54866620357) and next prime (54866620399).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22642875 + ... + 22645297.

It is an arithmetic number, because the mean of its divisors is an integer number (1837852560).

Almost surely, 2^54866620378 is an apocalyptic number.

54866620378 is a deficient number, since it is larger than the sum of its proper divisors (33350302502).

54866620378 is a wasteful number, since it uses less digits than its factorization.

54866620378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939 (or 2920 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 54866620378 in words is "fifty-four billion, eight hundred sixty-six million, six hundred twenty thousand, three hundred seventy-eight".