61045171374 has 32 divisors (see below), whose sum is σ = 133199147520. Its totient is φ = 18497192000.

The previous prime is 61045171373. The next prime is 61045171391. The reversal of 61045171374 is 47317154016.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61045171373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249099 + ... + 1297049.

It is an arithmetic number, because the mean of its divisors is an integer number (4162473360).

Almost surely, 2^61045171374 is an apocalyptic number.

61045171374 is an abundant number, since it is smaller than the sum of its proper divisors (72153976146).

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

61045171374 is a wasteful number, since it uses less digits than its factorization.

61045171374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67256.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 61045171374 in words is "sixty-one billion, forty-five million, one hundred seventy-one thousand, three hundred seventy-four".