2937981446561 has 32 divisors (see below), whose sum is σ = 3559600816128. Its totient is φ = 2367207383040.

The previous prime is 2937981446551. The next prime is 2937981446563. The reversal of 2937981446561 is 1656441897392.

It is not a de Polignac number, because 2937981446561 - 2³⁴ = 2920801577377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2937981446563) 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 31 ways as a sum of consecutive naturals, for example, 478261856 + ... + 478267998.

It is an arithmetic number, because the mean of its divisors is an integer number (111237525504).

Almost surely, 2^{2937981446561} is an apocalyptic number.

It is an amenable number.

2937981446561 is a deficient number, since it is larger than the sum of its proper divisors (621619369567).

2937981446561 is a wasteful number, since it uses less digits than its factorization.

2937981446561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481.

The product of its digits is 78382080, while the sum is 65.

The spelling of 2937981446561 in words is "two trillion, nine hundred thirty-seven billion, nine hundred eighty-one million, four hundred forty-six thousand, five hundred sixty-one".