1857049739980 has 12 divisors (see below), whose sum is σ = 3899804454000. Its totient is φ = 742819895984.

The previous prime is 1857049739957. The next prime is 1857049740071. The reversal of 1857049739980 is 899379407581.

It is a super-2 number, since 2×1857049739980² (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, 46426243480 + ... + 46426243519.

It is an arithmetic number, because the mean of its divisors is an integer number (324983704500).

Almost surely, 2^{1857049739980} is an apocalyptic number.

1857049739980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1857049739980 is an abundant number, since it is smaller than the sum of its proper divisors (2042754714020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1857049739980 is a wasteful number, since it uses less digits than its factorization.

1857049739980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92852487008 (or 92852487006 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 1857049739980 in words is "one trillion, eight hundred fifty-seven billion, forty-nine million, seven hundred thirty-nine thousand, nine hundred eighty".