734991913731 has 4 divisors (see below), whose sum is σ = 979989218312. Its totient is φ = 489994609152.

The previous prime is 734991913699. The next prime is 734991913739. The reversal of 734991913731 is 137319199437.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 734991913731 - 2⁵ = 734991913699 is a prime.

It is a super-2 number, since 2×734991913731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734991913739) 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, 122498652286 + ... + 122498652291.

It is an arithmetic number, because the mean of its divisors is an integer number (244997304578).

Almost surely, 2^734991913731 is an apocalyptic number.

734991913731 is a deficient number, since it is larger than the sum of its proper divisors (244997304581).

734991913731 is a wasteful number, since it uses less digits than its factorization.

734991913731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244997304580.

The product of its digits is 3857868, while the sum is 57.

The spelling of 734991913731 in words is "seven hundred thirty-four billion, nine hundred ninety-one million, nine hundred thirteen thousand, seven hundred thirty-one".