91939760734 has 16 divisors (see below), whose sum is σ = 140864505408. Its totient is φ = 44985212032.

The previous prime is 91939760729. The next prime is 91939760741. The reversal of 91939760734 is 43706793919.

It is a super-3 number, since 3×91939760734³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 608154 + ... + 744130.

It is an arithmetic number, because the mean of its divisors is an integer number (8804031588).

Almost surely, 2^91939760734 is an apocalyptic number.

91939760734 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

91939760734 is a deficient number, since it is larger than the sum of its proper divisors (48924744674).

91939760734 is a wasteful number, since it uses less digits than its factorization.

91939760734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143219.

The product of its (nonzero) digits is 7715736, while the sum is 58.

The spelling of 91939760734 in words is "ninety-one billion, nine hundred thirty-nine million, seven hundred sixty thousand, seven hundred thirty-four".