73977224053 has 2 divisors, whose sum is σ = 73977224054. Its totient is φ = 73977224052.

The previous prime is 73977223973. The next prime is 73977224141. The reversal of 73977224053 is 35042277937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73822520209 + 154703844 = 271703^2 + 12438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73977224053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73977223988 and 73977224006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73977224353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36988612026 + 36988612027.

It is an arithmetic number, because the mean of its divisors is an integer number (36988612027).

Almost surely, 2^73977224053 is an apocalyptic number.

It is an amenable number.

73977224053 is a deficient number, since it is larger than the sum of its proper divisors (1).

73977224053 is an equidigital number, since it uses as much as digits as its factorization.

73977224053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 73977224053 in words is "seventy-three billion, nine hundred seventy-seven million, two hundred twenty-four thousand, fifty-three".