64273308563356 has 24 divisors (see below), whose sum is σ = 119119823197200. Its totient is φ = 30239872196352.

The previous prime is 64273308563329. The next prime is 64273308563377. The reversal of 64273308563356 is 65336580337246.

It is a super-3 number, since 3×64273308563356³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64273308563294 and 64273308563303.

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, 99529806 + ... + 100173493.

It is an arithmetic number, because the mean of its divisors is an integer number (4963325966550).

Almost surely, 2^{64273308563356} is an apocalyptic number.

It is an amenable number.

64273308563356 is a deficient number, since it is larger than the sum of its proper divisors (54846514633844).

64273308563356 is a wasteful number, since it uses less digits than its factorization.

64273308563356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199708053 (or 199708051 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 61.

The spelling of 64273308563356 in words is "sixty-four trillion, two hundred seventy-three billion, three hundred eight million, five hundred sixty-three thousand, three hundred fifty-six".