1157173802402 has 6 divisors (see below), whose sum is σ = 1735762985553. Its totient is φ = 578586140552.

The previous prime is 1157173802387. The next prime is 1157173802437. The reversal of 1157173802402 is 2042083717511.

It can be written as a sum of positive squares in 2 ways, for example, as 798805150081 + 358368652321 = 893759^2 + 598639^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=760649.

It is a super-3 number, since 3×1157173802402³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157173802402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1140974 + ... + 1901622.

Almost surely, 2^{1157173802402} is an apocalyptic number.

1157173802402 is a deficient number, since it is larger than the sum of its proper divisors (578589183151).

1157173802402 is an frugal number, since it uses more digits than its factorization.

1157173802402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521300 (or 760651 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 1157173802402 in words is "one trillion, one hundred fifty-seven billion, one hundred seventy-three million, eight hundred two thousand, four hundred two".