1881003926494 has 16 divisors (see below), whose sum is σ = 3517721629056. Its totient is φ = 732858672600.

The previous prime is 1881003926449. The next prime is 1881003926537. The reversal of 1881003926494 is 4946293001881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6107155452 + ... + 6107155759.

It is an arithmetic number, because the mean of its divisors is an integer number (219857601816).

Almost surely, 2^{1881003926494} is an apocalyptic number.

1881003926494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1881003926494 is a deficient number, since it is larger than the sum of its proper divisors (1636717702562).

1881003926494 is a wasteful number, since it uses less digits than its factorization.

1881003926494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214311231.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 1881003926494 in words is "one trillion, eight hundred eighty-one billion, three million, nine hundred twenty-six thousand, four hundred ninety-four".