1269455135042 has 16 divisors (see below), whose sum is σ = 1925770791672. Its totient is φ = 627572079360.

The previous prime is 1269455134979. The next prime is 1269455135051. The reversal of 1269455135042 is 2405315549621.

It can be written as a sum of positive squares in 4 ways, for example, as 868980060481 + 400475074561 = 932191^2 + 632831^2 .

It is a super-2 number, since 2×1269455135042² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10072583 + ... + 10197834.

Almost surely, 2^{1269455135042} is an apocalyptic number.

1269455135042 is a deficient number, since it is larger than the sum of its proper divisors (656315656630).

1269455135042 is a wasteful number, since it uses less digits than its factorization.

1269455135042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270773.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 1269455135042 in words is "one trillion, two hundred sixty-nine billion, four hundred fifty-five million, one hundred thirty-five thousand, forty-two".