97731147734 has 32 divisors (see below), whose sum is σ = 163369529856. Its totient is φ = 43466573920.

The previous prime is 97731147721. The next prime is 97731147779. The reversal of 97731147734 is 43774113779.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4790684 + ... + 4811040.

It is an arithmetic number, because the mean of its divisors is an integer number (5105297808).

Almost surely, 2^97731147734 is an apocalyptic number.

97731147734 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

97731147734 is a deficient number, since it is larger than the sum of its proper divisors (65638382122).

97731147734 is a wasteful number, since it uses less digits than its factorization.

97731147734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25060.

The product of its digits is 3111696, while the sum is 53.

The spelling of 97731147734 in words is "ninety-seven billion, seven hundred thirty-one million, one hundred forty-seven thousand, seven hundred thirty-four".