64396274127 has 16 divisors (see below), whose sum is σ = 86147546880. Its totient is φ = 42788112192.

The previous prime is 64396274113. The next prime is 64396274143. The reversal of 64396274127 is 72147269346.

It is a happy number.

It is not a de Polignac number, because 64396274127 - 2²² = 64392079823 is a prime.

It is a super-2 number, since 2×64396274127² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64396274127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64396274197) 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, 1404438 + ... + 1449564.

It is an arithmetic number, because the mean of its divisors is an integer number (5384221680).

Almost surely, 2^64396274127 is an apocalyptic number.

64396274127 is a deficient number, since it is larger than the sum of its proper divisors (21751272753).

64396274127 is a wasteful number, since it uses less digits than its factorization.

64396274127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46702.

The product of its digits is 3048192, while the sum is 51.

The spelling of 64396274127 in words is "sixty-four billion, three hundred ninety-six million, two hundred seventy-four thousand, one hundred twenty-seven".