37994996747 has 2 divisors, whose sum is σ = 37994996748. Its totient is φ = 37994996746.

The previous prime is 37994996723. The next prime is 37994996777. The reversal of 37994996747 is 74769949973.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37994996747 - 2¹⁴ = 37994980363 is a prime.

It is not a weakly prime, because it can be changed into another prime (37994996777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18997498373 + 18997498374.

It is an arithmetic number, because the mean of its divisors is an integer number (18997498374).

Almost surely, 2^37994996747 is an apocalyptic number.

37994996747 is a deficient number, since it is larger than the sum of its proper divisors (1).

37994996747 is an equidigital number, since it uses as much as digits as its factorization.

37994996747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648121824, while the sum is 74.

The spelling of 37994996747 in words is "thirty-seven billion, nine hundred ninety-four million, nine hundred ninety-six thousand, seven hundred forty-seven".