249154175040 has 56 divisors (see below), whose sum is σ = 791064508800. Its totient is φ = 66441113088.

The previous prime is 249154175003. The next prime is 249154175047. The reversal of 249154175040 is 40571451942.

It is a junction number, because it is equal to n+sod(n) for n = 249154174983 and 249154175001.

It is not an unprimeable number, because it can be changed into a prime (249154175047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129766840 + ... + 129768759.

Almost surely, 2^249154175040 is an apocalyptic number.

249154175040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249154175040 is an abundant number, since it is smaller than the sum of its proper divisors (541910333760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249154175040 is a wasteful number, since it uses less digits than its factorization.

249154175040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259535619 (or 259535609 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 249154175040 in words is "two hundred forty-nine billion, one hundred fifty-four million, one hundred seventy-five thousand, forty".