73638420496 has 45 divisors (see below), whose sum is σ = 143855519871. Its totient is φ = 36516910752.

The previous prime is 73638420473. The next prime is 73638420521. The reversal of 73638420496 is 69402483637.

It is a happy number.

The square root of 73638420496 is 271364.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 194296435 + ... + 194296813.

Almost surely, 2^73638420496 is an apocalyptic number.

73638420496 is the 271364-th square number.

It is an amenable number.

73638420496 is a deficient number, since it is larger than the sum of its proper divisors (70217099375).

73638420496 is an frugal number, since it uses more digits than its factorization.

73638420496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 73638420496 in words is "seventy-three billion, six hundred thirty-eight million, four hundred twenty thousand, four hundred ninety-six".