1900910091082 has 4 divisors (see below), whose sum is σ = 2851365136626. Its totient is φ = 950455045540.

The previous prime is 1900910091023. The next prime is 1900910091107. The reversal of 1900910091082 is 2801900190091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1839226904761 + 61683186321 = 1356181^2 + 248361^2 .

It is a super-2 number, since 2×1900910091082² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475227522769 + ... + 475227522772.

Almost surely, 2^{1900910091082} is an apocalyptic number.

1900910091082 is a deficient number, since it is larger than the sum of its proper divisors (950455045544).

1900910091082 is an equidigital number, since it uses as much as digits as its factorization.

1900910091082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950455045543.

The product of its (nonzero) digits is 11664, while the sum is 40.

Subtracting 1900910091082 from its reverse (2801900190091), we obtain a palindrome (900990099009).

The spelling of 1900910091082 in words is "one trillion, nine hundred billion, nine hundred ten million, ninety-one thousand, eighty-two".