52619646654 has 16 divisors (see below), whose sum is σ = 116932548240. Its totient is φ = 17539882200.

The previous prime is 52619646647. The next prime is 52619646743. The reversal of 52619646654 is 45664691625.

52619646654 is a `hidden beast` number, since 526 + 1 + 9 + 6 + 4 + 66 + 54 = 666.

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: 974437901 = 52619646654 / (5 + 2 + 6 + 1 + 9 + 6 + 4 + 6 + 6 + 5 + 4).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52619646654.

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, 487218897 + ... + 487219004.

It is an arithmetic number, because the mean of its divisors is an integer number (7308284265).

Almost surely, 2^52619646654 is an apocalyptic number.

52619646654 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

52619646654 is an abundant number, since it is smaller than the sum of its proper divisors (64312901586).

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

52619646654 is a wasteful number, since it uses less digits than its factorization.

52619646654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974437912 (or 974437906 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 52619646654 in words is "fifty-two billion, six hundred nineteen million, six hundred forty-six thousand, six hundred fifty-four".