61994804254 has 16 divisors (see below), whose sum is σ = 93736137600. Its totient is φ = 30749782104.

The previous prime is 61994804197. The next prime is 61994804273. The reversal of 61994804254 is 45240849916.

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, 261439 + ... + 438565.

It is an arithmetic number, because the mean of its divisors is an integer number (5858508600).

Almost surely, 2^61994804254 is an apocalyptic number.

61994804254 is a deficient number, since it is larger than the sum of its proper divisors (31741333346).

61994804254 is a wasteful number, since it uses less digits than its factorization.

61994804254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178527.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 61994804254 in words is "sixty-one billion, nine hundred ninety-four million, eight hundred four thousand, two hundred fifty-four".