1985677132270 has 48 divisors (see below), whose sum is σ = 3900783260160. Its totient is φ = 727399999872.

The previous prime is 1985677132253. The next prime is 1985677132399. The reversal of 1985677132270 is 722317765891.

It is a super-2 number, since 2×1985677132270² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4411185 + ... + 4840444.

It is an arithmetic number, because the mean of its divisors is an integer number (81266317920).

Almost surely, 2^{1985677132270} is an apocalyptic number.

1985677132270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1985677132270 is a deficient number, since it is larger than the sum of its proper divisors (1915106127890).

1985677132270 is a wasteful number, since it uses less digits than its factorization.

1985677132270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251789 (or 9251776 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 1985677132270 in words is "one trillion, nine hundred eighty-five billion, six hundred seventy-seven million, one hundred thirty-two thousand, two hundred seventy".