2545614464 has 16 divisors (see below), whose sum is σ = 5071341570. Its totient is φ = 1272807168.

The previous prime is 2545614457. The next prime is 2545614473. The reversal of 2545614464 is 4644165452.

It can be written as a sum of positive squares in only one way, i.e., 2544193600 + 1420864 = 50440^2 + 1192^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9943679 + ... + 9943934.

Almost surely, 2^2545614464 is an apocalyptic number.

It is an amenable number.

2545614464 is a deficient number, since it is larger than the sum of its proper divisors (2525727106).

2545614464 is an equidigital number, since it uses as much as digits as its factorization.

2545614464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19887627 (or 19887615 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

The square root of 2545614464 is about 50454.0827287545. The cubic root of 2545614464 is about 1365.4135550941.

The spelling of 2545614464 in words is "two billion, five hundred forty-five million, six hundred fourteen thousand, four hundred sixty-four".