61542325654 has 16 divisors (see below), whose sum is σ = 93216298176. Its totient is φ = 30470473800.

The previous prime is 61542325633. The next prime is 61542325681. The reversal of 61542325654 is 45652324516.

It is a self number, because there is not a number n which added to its sum of digits gives 61542325654.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446749 + ... + 568039.

It is an arithmetic number, because the mean of its divisors is an integer number (5826018636).

Almost surely, 2^61542325654 is an apocalyptic number.

61542325654 is a deficient number, since it is larger than the sum of its proper divisors (31673972522).

61542325654 is a wasteful number, since it uses less digits than its factorization.

61542325654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123771.

The product of its digits is 864000, while the sum is 43.

The spelling of 61542325654 in words is "sixty-one billion, five hundred forty-two million, three hundred twenty-five thousand, six hundred fifty-four".