61045864254 has 12 divisors (see below), whose sum is σ = 132266039256. Its totient is φ = 20348621412.

The previous prime is 61045864249. The next prime is 61045864267. The reversal of 61045864254 is 45246854016.

It is a happy number.

61045864254 is a `hidden beast` number, since 6 + 10 + 4 + 586 + 4 + 2 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1695718434 + ... + 1695718469.

It is an arithmetic number, because the mean of its divisors is an integer number (11022169938).

Almost surely, 2^61045864254 is an apocalyptic number.

61045864254 is an abundant number, since it is smaller than the sum of its proper divisors (71220175002).

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

61045864254 is a wasteful number, since it uses less digits than its factorization.

61045864254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391436911 (or 3391436908 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 61045864254 in words is "sixty-one billion, forty-five million, eight hundred sixty-four thousand, two hundred fifty-four".