3722372643 has 16 divisors (see below), whose sum is σ = 5421782016. Its totient is φ = 2252891040.

The previous prime is 3722372627. The next prime is 3722372671. The reversal of 3722372643 is 3462732273.

It is not a de Polignac number, because 3722372643 - 2⁴ = 3722372627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3722372623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52755 + ... + 101132.

It is an arithmetic number, because the mean of its divisors is an integer number (338861376).

Almost surely, 2^3722372643 is an apocalyptic number.

3722372643 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3722372643 is a deficient number, since it is larger than the sum of its proper divisors (1699409373).

3722372643 is a wasteful number, since it uses less digits than its factorization.

3722372643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154634.

The product of its digits is 254016, while the sum is 39.

The square root of 3722372643 is about 61011.2501347088. The cubic root of 3722372643 is about 1549.7915283966.

The spelling of 3722372643 in words is "three billion, seven hundred twenty-two million, three hundred seventy-two thousand, six hundred forty-three".