1900639447084 has 48 divisors (see below), whose sum is σ = 3882812129280. Its totient is φ = 797094204480.

The previous prime is 1900639447073. The next prime is 1900639447087. The reversal of 1900639447084 is 4807449360091.

It is a super-2 number, since 2×1900639447084² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900639447087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7881174 + ... + 8118754.

It is an arithmetic number, because the mean of its divisors is an integer number (80891919360).

Almost surely, 2^{1900639447084} is an apocalyptic number.

1900639447084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1900639447084 is an abundant number, since it is smaller than the sum of its proper divisors (1982172682196).

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

1900639447084 is a wasteful number, since it uses less digits than its factorization.

1900639447084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243718 (or 243716 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 1900639447084 in words is "one trillion, nine hundred billion, six hundred thirty-nine million, four hundred forty-seven thousand, eighty-four".