64741858591397 has 16 divisors (see below), whose sum is σ = 69951503204352. Its totient is φ = 59565013260480.

The previous prime is 64741858591337. The next prime is 64741858591409. The reversal of 64741858591397 is 79319585814746.

It is not a de Polignac number, because 64741858591397 - 2¹⁰ = 64741858590373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64741858591337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123223388 + ... + 123747674.

It is an arithmetic number, because the mean of its divisors is an integer number (4371968950272).

Almost surely, 2^{64741858591397} is an apocalyptic number.

It is an amenable number.

64741858591397 is a deficient number, since it is larger than the sum of its proper divisors (5209644612955).

64741858591397 is a wasteful number, since it uses less digits than its factorization.

64741858591397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555548.

The product of its digits is 1828915200, while the sum is 77.

The spelling of 64741858591397 in words is "sixty-four trillion, seven hundred forty-one billion, eight hundred fifty-eight million, five hundred ninety-one thousand, three hundred ninety-seven".