50761786997 has 2 divisors, whose sum is σ = 50761786998. Its totient is φ = 50761786996.

The previous prime is 50761786961. The next prime is 50761787009. The reversal of 50761786997 is 79968716705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48149963761 + 2611823236 = 219431^2 + 51106^2 .

It is a cyclic number.

It is not a de Polignac number, because 50761786997 - 2¹⁰ = 50761785973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50761788997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25380893498 + 25380893499.

It is an arithmetic number, because the mean of its divisors is an integer number (25380893499).

Almost surely, 2^50761786997 is an apocalyptic number.

It is an amenable number.

50761786997 is a deficient number, since it is larger than the sum of its proper divisors (1).

50761786997 is an equidigital number, since it uses as much as digits as its factorization.

50761786997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40007520, while the sum is 65.

The spelling of 50761786997 in words is "fifty billion, seven hundred sixty-one million, seven hundred eighty-six thousand, nine hundred ninety-seven".