64100436405 has 8 divisors (see below), whose sum is σ = 102560698272. Its totient is φ = 34186899408.

The previous prime is 64100436397. The next prime is 64100436437. The reversal of 64100436405 is 50463400146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64100436405 - 2³ = 64100436397 is a prime.

It is a super-2 number, since 2×64100436405² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136681199 + ... + 2136681228.

It is an arithmetic number, because the mean of its divisors is an integer number (12820087284).

Almost surely, 2^64100436405 is an apocalyptic number.

It is an amenable number.

64100436405 is a deficient number, since it is larger than the sum of its proper divisors (38460261867).

64100436405 is a wasteful number, since it uses less digits than its factorization.

64100436405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273362435.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 64100436405 in words is "sixty-four billion, one hundred million, four hundred thirty-six thousand, four hundred five".