73713377737 has 4 divisors (see below), whose sum is σ = 73918707840. Its totient is φ = 73508047636.

The previous prime is 73713377623. The next prime is 73713377743. The reversal of 73713377737 is 73777331737.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 73713377737 - 2³¹ = 71565894089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73713377767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102664513 + ... + 102665230.

It is an arithmetic number, because the mean of its divisors is an integer number (18479676960).

Almost surely, 2^73713377737 is an apocalyptic number.

It is an amenable number.

73713377737 is a deficient number, since it is larger than the sum of its proper divisors (205330103).

73713377737 is a wasteful number, since it uses less digits than its factorization.

73713377737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205330102.

The product of its digits is 9529569, while the sum is 55.

The spelling of 73713377737 in words is "seventy-three billion, seven hundred thirteen million, three hundred seventy-seven thousand, seven hundred thirty-seven".