1042487057251 has 4 divisors (see below), whose sum is σ = 1045112969632. Its totient is φ = 1039861144872.

The previous prime is 1042487057243. The next prime is 1042487057257. The reversal of 1042487057251 is 1527507842401.

1042487057251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042487057251 - 2³ = 1042487057243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042487057257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312955595 + ... + 1312956388.

It is an arithmetic number, because the mean of its divisors is an integer number (261278242408).

Almost surely, 2^{1042487057251} is an apocalyptic number.

1042487057251 is a deficient number, since it is larger than the sum of its proper divisors (2625912381).

1042487057251 is an equidigital number, since it uses as much as digits as its factorization.

1042487057251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625912380.

The product of its (nonzero) digits is 627200, while the sum is 46.

The spelling of 1042487057251 in words is "one trillion, forty-two billion, four hundred eighty-seven million, fifty-seven thousand, two hundred fifty-one".