1051969874987 has 2 divisors, whose sum is σ = 1051969874988. Its totient is φ = 1051969874986.

The previous prime is 1051969874981. The next prime is 1051969875161. The reversal of 1051969874987 is 7894789691501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051969874987 - 2⁸ = 1051969874731 is a prime.

It is a super-2 number, since 2×1051969874987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051969874981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525984937493 + 525984937494.

It is an arithmetic number, because the mean of its divisors is an integer number (525984937494).

Almost surely, 2^{1051969874987} is an apocalyptic number.

1051969874987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051969874987 is an equidigital number, since it uses as much as digits as its factorization.

1051969874987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 274337280, while the sum is 74.

The spelling of 1051969874987 in words is "one trillion, fifty-one billion, nine hundred sixty-nine million, eight hundred seventy-four thousand, nine hundred eighty-seven".