64145472502 has 8 divisors (see below), whose sum is σ = 98033646816. Its totient is φ = 31467590232.

The previous prime is 64145472497. The next prime is 64145472527. The reversal of 64145472502 is 20527454146.

It is a happy number.

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

It is a super-2 number, since 2×64145472502² (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 3 ways as a sum of consecutive naturals, for example, 302572878 + ... + 302573089.

It is an arithmetic number, because the mean of its divisors is an integer number (12254205852).

Almost surely, 2^64145472502 is an apocalyptic number.

64145472502 is a deficient number, since it is larger than the sum of its proper divisors (33888174314).

64145472502 is a wasteful number, since it uses less digits than its factorization.

64145472502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605146022.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 64145472502 in words is "sixty-four billion, one hundred forty-five million, four hundred seventy-two thousand, five hundred two".