1272442952402 has 8 divisors (see below), whose sum is σ = 1908727935996. Its totient is φ = 636200307072.

The previous prime is 1272442952387. The next prime is 1272442952449. The reversal of 1272442952402 is 2042592442721.

It can be written as a sum of positive squares in 2 ways, for example, as 1124026160401 + 148416792001 = 1060201^2 + 385249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1272442952402² (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 3 ways as a sum of consecutive naturals, for example, 10509323 + ... + 10629710.

Almost surely, 2^{1272442952402} is an apocalyptic number.

1272442952402 is a deficient number, since it is larger than the sum of its proper divisors (636284983594).

1272442952402 is a wasteful number, since it uses less digits than its factorization.

1272442952402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21169132.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 1272442952402 in words is "one trillion, two hundred seventy-two billion, four hundred forty-two million, nine hundred fifty-two thousand, four hundred two".