64013167477 has 6 divisors (see below), whose sum is σ = 74464296918. Its totient is φ = 54868429224.

The previous prime is 64013167469. The next prime is 64013167481. The reversal of 64013167477 is 77476131046.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36087081156 + 27926086321 = 189966^2 + 167111^2 .

It is not a de Polignac number, because 64013167477 - 2³ = 64013167469 is a prime.

It is a super-2 number, since 2×64013167477² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64013167177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 653195538 + ... + 653195635.

It is an arithmetic number, because the mean of its divisors is an integer number (12410716153).

Almost surely, 2^64013167477 is an apocalyptic number.

It is an amenable number.

64013167477 is a deficient number, since it is larger than the sum of its proper divisors (10451129441).

64013167477 is a wasteful number, since it uses less digits than its factorization.

64013167477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306391187 (or 1306391180 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 64013167477 in words is "sixty-four billion, thirteen million, one hundred sixty-seven thousand, four hundred seventy-seven".