1931417901253 has 4 divisors (see below), whose sum is σ = 1972511899200. Its totient is φ = 1890323903308.

The previous prime is 1931417901241. The next prime is 1931417901299. The reversal of 1931417901253 is 3521097141391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1931417901253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1931417901233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20546998903 + ... + 20546998996.

It is an arithmetic number, because the mean of its divisors is an integer number (493127974800).

Almost surely, 2^{1931417901253} is an apocalyptic number.

It is an amenable number.

1931417901253 is a deficient number, since it is larger than the sum of its proper divisors (41093997947).

1931417901253 is an equidigital number, since it uses as much as digits as its factorization.

1931417901253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41093997946.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 1931417901253 in words is "one trillion, nine hundred thirty-one billion, four hundred seventeen million, nine hundred one thousand, two hundred fifty-three".