1057702990405 has 8 divisors (see below), whose sum is σ = 1343904976152. Its totient is φ = 796388133888.

The previous prime is 1057702990373. The next prime is 1057702990423. The reversal of 1057702990405 is 5040992077501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 217945187716 + 839757802689 = 466846^2 + 916383^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1057702990405 - 2⁵ = 1057702990373 is a prime.

It is a super-2 number, since 2×1057702990405² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 6221782212 + ... + 6221782381.

It is an arithmetic number, because the mean of its divisors is an integer number (167988122019).

Almost surely, 2^{1057702990405} is an apocalyptic number.

It is an amenable number.

1057702990405 is a deficient number, since it is larger than the sum of its proper divisors (286201985747).

1057702990405 is a wasteful number, since it uses less digits than its factorization.

1057702990405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443564615.

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 1057702990405 in words is "one trillion, fifty-seven billion, seven hundred two million, nine hundred ninety thousand, four hundred five".