37646640242 has 24 divisors (see below), whose sum is σ = 59616539136. Its totient is φ = 17827219224.

The previous prime is 37646640209. The next prime is 37646640247. The reversal of 37646640242 is 24204664673.

It is a junction number, because it is equal to n+sod(n) for n = 37646640193 and 37646640202.

It is not an unprimeable number, because it can be changed into a prime (37646640247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3390023 + ... + 3401109.

It is an arithmetic number, because the mean of its divisors is an integer number (2484022464).

Almost surely, 2^37646640242 is an apocalyptic number.

37646640242 is a deficient number, since it is larger than the sum of its proper divisors (21969898894).

37646640242 is a wasteful number, since it uses less digits than its factorization.

37646640242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15830 (or 15811 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 44.

The spelling of 37646640242 in words is "thirty-seven billion, six hundred forty-six million, six hundred forty thousand, two hundred forty-two".