37721419441 has 2 divisors, whose sum is σ = 37721419442. Its totient is φ = 37721419440.

The previous prime is 37721419427. The next prime is 37721419447. The reversal of 37721419441 is 14491412773.

37721419441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37712086416 + 9333025 = 194196^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 37721419441 - 2¹⁷ = 37721288369 is a prime.

It is not a weakly prime, because it can be changed into another prime (37721419447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18860709720 + 18860709721.

It is an arithmetic number, because the mean of its divisors is an integer number (18860709721).

Almost surely, 2^37721419441 is an apocalyptic number.

It is an amenable number.

37721419441 is a deficient number, since it is larger than the sum of its proper divisors (1).

37721419441 is an equidigital number, since it uses as much as digits as its factorization.

37721419441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The spelling of 37721419441 in words is "thirty-seven billion, seven hundred twenty-one million, four hundred nineteen thousand, four hundred forty-one".