73706541949 has 2 divisors, whose sum is σ = 73706541950. Its totient is φ = 73706541948.

The previous prime is 73706541943. The next prime is 73706541991. The reversal of 73706541949 is 94914560737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57674424025 + 16032117924 = 240155^2 + 126618^2 .

It is a cyclic number.

It is not a de Polignac number, because 73706541949 - 2⁵ = 73706541917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73706541949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73706541943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36853270974 + 36853270975.

It is an arithmetic number, because the mean of its divisors is an integer number (36853270975).

Almost surely, 2^73706541949 is an apocalyptic number.

It is an amenable number.

73706541949 is a deficient number, since it is larger than the sum of its proper divisors (1).

73706541949 is an equidigital number, since it uses as much as digits as its factorization.

73706541949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 73706541949 in words is "seventy-three billion, seven hundred six million, five hundred forty-one thousand, nine hundred forty-nine".