2499391699456 has 80 divisors (see below), whose sum is σ = 5114776347648. Its totient is φ = 1219694694400.

The previous prime is 2499391699447. The next prime is 2499391699471. The reversal of 2499391699456 is 6549961939942.

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, 4941861 + ... + 5424091.

Almost surely, 2^{2499391699456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499391699456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2557388173824).

2499391699456 is an abundant number, since it is smaller than the sum of its proper divisors (2615384648192).

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

2499391699456 is an equidigital number, since it uses as much as digits as its factorization.

2499391699456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482493 (or 482477 counting only the distinct ones).

The product of its digits is 1020366720, while the sum is 76.

The spelling of 2499391699456 in words is "two trillion, four hundred ninety-nine billion, three hundred ninety-one million, six hundred ninety-nine thousand, four hundred fifty-six".