61983087474 has 64 divisors (see below), whose sum is σ = 155923107840. Its totient is φ = 15957016320.

The previous prime is 61983087449. The next prime is 61983087589. The reversal of 61983087474 is 47478038916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541434 + ... + 645845.

It is an arithmetic number, because the mean of its divisors is an integer number (2436298560).

Almost surely, 2^61983087474 is an apocalyptic number.

61983087474 is an abundant number, since it is smaller than the sum of its proper divisors (93940020366).

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

61983087474 is a wasteful number, since it uses less digits than its factorization.

61983087474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187415.

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 61983087474 in words is "sixty-one billion, nine hundred eighty-three million, eighty-seven thousand, four hundred seventy-four".