1249970956442 has 32 divisors (see below), whose sum is σ = 2021021467920. Its totient is φ = 576384929280.

The previous prime is 1249970956433. The next prime is 1249970956453. The reversal of 1249970956442 is 2446590799421.

It is a Cunningham number, because it is equal to 1118021²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 184907740081 + 1065063216361 = 430009^2 + 1032019^2 .

It is a super-2 number, since 2×1249970956442² (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 15 ways as a sum of consecutive naturals, for example, 193102118 + ... + 193108590.

Almost surely, 2^{1249970956442} is an apocalyptic number.

1249970956442 is a deficient number, since it is larger than the sum of its proper divisors (771050511478).

1249970956442 is a wasteful number, since it uses less digits than its factorization.

1249970956442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 1249970956442 in words is "one trillion, two hundred forty-nine billion, nine hundred seventy million, nine hundred fifty-six thousand, four hundred forty-two".