3654612731 has 48 divisors (see below), whose sum is σ = 4682076672. Its totient is φ = 2791895040.

The previous prime is 3654612707. The next prime is 3654612737. The reversal of 3654612731 is 1372164563.

It is not a de Polignac number, because 3654612731 - 2²² = 3650418427 is a prime.

It is a super-2 number, since 2×3654612731² = 26712388427174556722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3654612737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14220155 + ... + 14220411.

It is an arithmetic number, because the mean of its divisors is an integer number (97543264).

Almost surely, 2^3654612731 is an apocalyptic number.

3654612731 is a deficient number, since it is larger than the sum of its proper divisors (1027463941).

3654612731 is a wasteful number, since it uses less digits than its factorization.

3654612731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 541 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 3654612731 is about 60453.3930478679. The cubic root of 3654612731 is about 1540.3300483076.

The spelling of 3654612731 in words is "three billion, six hundred fifty-four million, six hundred twelve thousand, seven hundred thirty-one".