37416609981 has 6 divisors (see below), whose sum is σ = 54046214430. Its totient is φ = 24944406648.

The previous prime is 37416609949. The next prime is 37416609991. The reversal of 37416609981 is 18990661473.

37416609981 is a `hidden beast` number, since 3 + 7 + 416 + 60 + 99 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37384222500 + 32387481 = 193350^2 + 5691^2 .

It is not a de Polignac number, because 37416609981 - 2⁵ = 37416609949 is a prime.

It is a super-2 number, since 2×37416609981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37416609931) 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 5 ways as a sum of consecutive naturals, for example, 2078700546 + ... + 2078700563.

It is an arithmetic number, because the mean of its divisors is an integer number (9007702405).

Almost surely, 2^37416609981 is an apocalyptic number.

It is an amenable number.

37416609981 is a deficient number, since it is larger than the sum of its proper divisors (16629604449).

37416609981 is a wasteful number, since it uses less digits than its factorization.

37416609981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157401115 (or 4157401112 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 37416609981 in words is "thirty-seven billion, four hundred sixteen million, six hundred nine thousand, nine hundred eighty-one".