2504890128877 has 2 divisors, whose sum is σ = 2504890128878. Its totient is φ = 2504890128876.

The previous prime is 2504890128847. The next prime is 2504890128899. The reversal of 2504890128877 is 7788210984052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2193867531241 + 311022597636 = 1481171^2 + 557694^2 .

It is a cyclic number.

It is not a de Polignac number, because 2504890128877 - 2¹⁹ = 2504889604589 is a prime.

It is a super-2 number, since 2×2504890128877² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2504890128847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252445064438 + 1252445064439.

It is an arithmetic number, because the mean of its divisors is an integer number (1252445064439).

Almost surely, 2^{2504890128877} is an apocalyptic number.

It is an amenable number.

2504890128877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504890128877 is an equidigital number, since it uses as much as digits as its factorization.

2504890128877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 2504890128877 in words is "two trillion, five hundred four billion, eight hundred ninety million, one hundred twenty-eight thousand, eight hundred seventy-seven".