245093890493951 has 4 divisors (see below), whose sum is σ = 245129100081504. Its totient is φ = 245058680906400.

The previous prime is 245093890493927. The next prime is 245093890494059. The reversal of 245093890493951 is 159394098390542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245093890493951 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 (245093890493251) 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, 17604783335 + ... + 17604797256.

It is an arithmetic number, because the mean of its divisors is an integer number (61282275020376).

Almost surely, 2^{245093890493951} is an apocalyptic number.

245093890493951 is a deficient number, since it is larger than the sum of its proper divisors (35209587553).

245093890493951 is an equidigital number, since it uses as much as digits as its factorization.

245093890493951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35209587552.

The product of its (nonzero) digits is 377913600, while the sum is 71.

The spelling of 245093890493951 in words is "two hundred forty-five trillion, ninety-three billion, eight hundred ninety million, four hundred ninety-three thousand, nine hundred fifty-one".