54865607858 has 16 divisors (see below), whose sum is σ = 85461917184. Its totient is φ = 26388900480.

The previous prime is 54865607857. The next prime is 54865607891. The reversal of 54865607858 is 85870656845.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 54865607858.

It is not an unprimeable number, because it can be changed into a prime (54865607857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2639135 + ... + 2659842.

It is an arithmetic number, because the mean of its divisors is an integer number (5341369824).

Almost surely, 2^54865607858 is an apocalyptic number.

54865607858 is a deficient number, since it is larger than the sum of its proper divisors (30596309326).

54865607858 is a wasteful number, since it uses less digits than its factorization.

54865607858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299177.

The product of its (nonzero) digits is 64512000, while the sum is 62.

The spelling of 54865607858 in words is "fifty-four billion, eight hundred sixty-five million, six hundred seven thousand, eight hundred fifty-eight".