2974561961 has 16 divisors (see below), whose sum is σ = 3606871680. Its totient is φ = 2394712320.

The previous prime is 2974561943. The next prime is 2974561973. The reversal of 2974561961 is 1691654792.

It is not a de Polignac number, because 2974561961 - 2¹⁸ = 2974299817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2974561901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32975 + ... + 83883.

It is an arithmetic number, because the mean of its divisors is an integer number (225429480).

Almost surely, 2^2974561961 is an apocalyptic number.

It is an amenable number.

2974561961 is a deficient number, since it is larger than the sum of its proper divisors (632309719).

2974561961 is a wasteful number, since it uses less digits than its factorization.

2974561961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51424.

The product of its digits is 816480, while the sum is 50.

The square root of 2974561961 is about 54539.5449284278. The cubic root of 2974561961 is about 1438.1615493252.

The spelling of 2974561961 in words is "two billion, nine hundred seventy-four million, five hundred sixty-one thousand, nine hundred sixty-one".