64145244276574 has 8 divisors (see below), whose sum is σ = 96221636340840. Its totient is φ = 32071365496296.

The previous prime is 64145244276557. The next prime is 64145244276671. The reversal of 64145244276574 is 47567244254146.

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

It is a super-2 number, since 2×64145244276574² (a number of 28 digits) contains 22 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 (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628257189 + ... + 628359280.

It is an arithmetic number, because the mean of its divisors is an integer number (12027704542605).

Almost surely, 2^{64145244276574} is an apocalyptic number.

64145244276574 is a deficient number, since it is larger than the sum of its proper divisors (32076392064266).

64145244276574 is a wasteful number, since it uses less digits than its factorization.

64145244276574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256641994.

The product of its digits is 180633600, while the sum is 61.

The spelling of 64145244276574 in words is "sixty-four trillion, one hundred forty-five billion, two hundred forty-four million, two hundred seventy-six thousand, five hundred seventy-four".