61012258494 has 32 divisors (see below), whose sum is σ = 140948107776. Its totient is φ = 17401000320.

The previous prime is 61012258487. The next prime is 61012258513. The reversal of 61012258494 is 49485221016.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27187942 + ... + 27190185.

It is an arithmetic number, because the mean of its divisors is an integer number (4404628368).

Almost surely, 2^61012258494 is an apocalyptic number.

61012258494 is an abundant number, since it is smaller than the sum of its proper divisors (79935849282).

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

61012258494 is a wasteful number, since it uses less digits than its factorization.

61012258494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54378160.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 61012258494 in words is "sixty-one billion, twelve million, two hundred fifty-eight thousand, four hundred ninety-four".