64461534503045 has 16 divisors (see below), whose sum is σ = 77697455500080. Its totient is φ = 51340217769984.

The previous prime is 64461534503011. The next prime is 64461534503057. The reversal of 64461534503045 is 54030543516446.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1928882100964 + 62532652402081 = 1388842^2 + 7907759^2 .

It is a cyclic number.

It is not a de Polignac number, because 64461534503045 - 2¹⁰ = 64461534502021 is a prime.

It is a super-2 number, since 2×64461534503045² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64461534502984 and 64461534503002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3656657 + ... + 11928713.

It is an arithmetic number, because the mean of its divisors is an integer number (4856090968755).

Almost surely, 2^{64461534503045} is an apocalyptic number.

It is an amenable number.

64461534503045 is a deficient number, since it is larger than the sum of its proper divisors (13235920997035).

64461534503045 is a wasteful number, since it uses less digits than its factorization.

64461534503045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278984.

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 64461534503045 in words is "sixty-four trillion, four hundred sixty-one billion, five hundred thirty-four million, five hundred three thousand, forty-five".