1939297858043 has 24 divisors (see below), whose sum is σ = 2429646066288. Its totient is φ = 1534265724096.

The previous prime is 1939297858027. The next prime is 1939297858079. The reversal of 1939297858043 is 3408587929391.

It is not a de Polignac number, because 1939297858043 - 2⁴ = 1939297858027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1939297858343) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8223980 + ... + 8456502.

It is an arithmetic number, because the mean of its divisors is an integer number (101235252762).

Almost surely, 2^{1939297858043} is an apocalyptic number.

1939297858043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1939297858043 is a deficient number, since it is larger than the sum of its proper divisors (490348208245).

1939297858043 is a wasteful number, since it uses less digits than its factorization.

1939297858043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245643 (or 245636 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 1939297858043 in words is "one trillion, nine hundred thirty-nine billion, two hundred ninety-seven million, eight hundred fifty-eight thousand, forty-three".