61240734474 has 16 divisors (see below), whose sum is σ = 122520230112. Its totient is φ = 20407117968.

The previous prime is 61240734439. The next prime is 61240734479. The reversal of 61240734474 is 47443704216.

It is not an unprimeable number, because it can be changed into a prime (61240734479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1594489 + ... + 1632444.

It is an arithmetic number, because the mean of its divisors is an integer number (7657514382).

Almost surely, 2^61240734474 is an apocalyptic number.

61240734474 is an abundant number, since it is smaller than the sum of its proper divisors (61279495638).

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

61240734474 is a wasteful number, since it uses less digits than its factorization.

61240734474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230101.

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 61240734474 in words is "sixty-one billion, two hundred forty million, seven hundred thirty-four thousand, four hundred seventy-four".