73790374657 has 4 divisors (see below), whose sum is σ = 76998651840. Its totient is φ = 70582097476.

The previous prime is 73790374649. The next prime is 73790374663. The reversal of 73790374657 is 75647309737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75647309737 = 277 ⋅273094981.

It is a cyclic number.

It is not a de Polignac number, because 73790374657 - 2³ = 73790374649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73790374627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604138557 + ... + 1604138602.

It is an arithmetic number, because the mean of its divisors is an integer number (19249662960).

Almost surely, 2^73790374657 is an apocalyptic number.

It is an amenable number.

73790374657 is a deficient number, since it is larger than the sum of its proper divisors (3208277183).

73790374657 is a wasteful number, since it uses less digits than its factorization.

73790374657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208277182.

The product of its (nonzero) digits is 23337720, while the sum is 58.

The spelling of 73790374657 in words is "seventy-three billion, seven hundred ninety million, three hundred seventy-four thousand, six hundred fifty-seven".