2504405894787 has 48 divisors (see below), whose sum is σ = 3939140630880. Its totient is φ = 1567139125248.

The previous prime is 2504405894759. The next prime is 2504405894789. The reversal of 2504405894787 is 7874985044052.

It is a happy number.

2504405894787 is a `hidden beast` number, since 2 + 5 + 0 + 4 + 4 + 0 + 589 + 47 + 8 + 7 = 666.

It is not a de Polignac number, because 2504405894787 - 2²³ = 2504397506179 is a prime.

It is a super-2 number, since 2×2504405894787² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2504405894789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63840603 + ... + 63879819.

It is an arithmetic number, because the mean of its divisors is an integer number (82065429810).

Almost surely, 2^{2504405894787} is an apocalyptic number.

2504405894787 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2504405894787 is a deficient number, since it is larger than the sum of its proper divisors (1434734736093).

2504405894787 is an equidigital number, since it uses as much as digits as its factorization.

2504405894787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39989 (or 39610 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 63.

The spelling of 2504405894787 in words is "two trillion, five hundred four billion, four hundred five million, eight hundred ninety-four thousand, seven hundred eighty-seven".