2512394547381 has 8 divisors (see below), whose sum is σ = 3722065996160. Its totient is φ = 1674929698236.

The previous prime is 2512394547371. The next prime is 2512394547389. The reversal of 2512394547381 is 1837454932152.

2512394547381 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 3 + 94 + 5 + 473 + 81 = 666.

It is not a de Polignac number, because 2512394547381 - 2⁶ = 2512394547317 is a prime.

It is a super-2 number, since 2×2512394547381² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512394547389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46525824925 + ... + 46525824978.

It is an arithmetic number, because the mean of its divisors is an integer number (465258249520).

Almost surely, 2^{2512394547381} is an apocalyptic number.

It is an amenable number.

2512394547381 is a deficient number, since it is larger than the sum of its proper divisors (1209671448779).

2512394547381 is an equidigital number, since it uses as much as digits as its factorization.

2512394547381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93051649912 (or 93051649906 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 2512394547381 in words is "two trillion, five hundred twelve billion, three hundred ninety-four million, five hundred forty-seven thousand, three hundred eighty-one".