73628390642 has 16 divisors (see below), whose sum is σ = 110572414080. Its totient is φ = 36770945328.

The previous prime is 73628390639. The next prime is 73628390653. The reversal of 73628390642 is 24609382637.

It is a super-2 number, since 2×73628390642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8772584 + ... + 8780972.

It is an arithmetic number, because the mean of its divisors is an integer number (6910775880).

Almost surely, 2^73628390642 is an apocalyptic number.

73628390642 is a deficient number, since it is larger than the sum of its proper divisors (36944023438).

73628390642 is a wasteful number, since it uses less digits than its factorization.

73628390642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13025.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 73628390642 in words is "seventy-three billion, six hundred twenty-eight million, three hundred ninety thousand, six hundred forty-two".