190713725261 has 2 divisors, whose sum is σ = 190713725262. Its totient is φ = 190713725260.

The previous prime is 190713725221. The next prime is 190713725273. The reversal of 190713725261 is 162527317091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190701649636 + 12075625 = 436694^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 190713725261 - 2¹⁰ = 190713724237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190713725221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95356862630 + 95356862631.

It is an arithmetic number, because the mean of its divisors is an integer number (95356862631).

Almost surely, 2^190713725261 is an apocalyptic number.

It is an amenable number.

190713725261 is a deficient number, since it is larger than the sum of its proper divisors (1).

190713725261 is an equidigital number, since it uses as much as digits as its factorization.

190713725261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 190713725261 in words is "one hundred ninety billion, seven hundred thirteen million, seven hundred twenty-five thousand, two hundred sixty-one".