249695119117240 has 32 divisors (see below), whose sum is σ = 561855706102080. Its totient is φ = 99870636431232.

The previous prime is 249695119117139. The next prime is 249695119117277. The reversal of 249695119117240 is 42711911596942.

It is a happy number.

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, 231054672 + ... + 232132831.

It is an arithmetic number, because the mean of its divisors is an integer number (17557990815690).

Almost surely, 2^{249695119117240} is an apocalyptic number.

249695119117240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249695119117240 is an abundant number, since it is smaller than the sum of its proper divisors (312160586984840).

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

249695119117240 is a wasteful number, since it uses less digits than its factorization.

249695119117240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463200991 (or 463200987 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 249695119117240 in words is "two hundred forty-nine trillion, six hundred ninety-five billion, one hundred nineteen million, one hundred seventeen thousand, two hundred forty".