1072887257881 has 2 divisors, whose sum is σ = 1072887257882. Its totient is φ = 1072887257880.

The previous prime is 1072887257843. The next prime is 1072887257899. The reversal of 1072887257881 is 1887527882701.

1072887257881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072312025625 + 575232256 = 1035525^2 + 23984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072887257881 - 2⁹ = 1072887257369 is a prime.

It is a super-2 number, since 2×1072887257881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072887257821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536443628940 + 536443628941.

It is an arithmetic number, because the mean of its divisors is an integer number (536443628941).

Almost surely, 2^{1072887257881} is an apocalyptic number.

It is an amenable number.

1072887257881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072887257881 is an equidigital number, since it uses as much as digits as its factorization.

1072887257881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28098560, while the sum is 64.

The spelling of 1072887257881 in words is "one trillion, seventy-two billion, eight hundred eighty-seven million, two hundred fifty-seven thousand, eight hundred eighty-one".