37212649856 has 16 divisors (see below), whose sum is σ = 74134576140. Its totient is φ = 18606324864.

The previous prime is 37212649853. The next prime is 37212649927. The reversal of 37212649856 is 65894621273.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 37212649798 and 37212649807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37212649853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145361786 + ... + 145362041.

Almost surely, 2^37212649856 is an apocalyptic number.

It is an amenable number.

37212649856 is a deficient number, since it is larger than the sum of its proper divisors (36921926284).

37212649856 is an equidigital number, since it uses as much as digits as its factorization.

37212649856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290723841 (or 290723829 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The spelling of 37212649856 in words is "thirty-seven billion, two hundred twelve million, six hundred forty-nine thousand, eight hundred fifty-six".