1557114682490 has 16 divisors (see below), whose sum is σ = 2871167561640. Its totient is φ = 607654510080.

The previous prime is 1557114682451. The next prime is 1557114682499. The reversal of 1557114682490 is 942864117551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 310348153921 + 1246766528569 = 557089^2 + 1116587^2 .

It is a super-2 number, since 2×1557114682490² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1557114682499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898919935 + ... + 1898920754.

Almost surely, 2^{1557114682490} is an apocalyptic number.

1557114682490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1557114682490 is a deficient number, since it is larger than the sum of its proper divisors (1314052879150).

1557114682490 is a wasteful number, since it uses less digits than its factorization.

1557114682490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797840737.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1557114682490 in words is "one trillion, five hundred fifty-seven billion, one hundred fourteen million, six hundred eighty-two thousand, four hundred ninety".