64692005629 has 2 divisors, whose sum is σ = 64692005630. Its totient is φ = 64692005628.

The previous prime is 64692005551. The next prime is 64692005633. The reversal of 64692005629 is 92650029646.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58805280004 + 5886725625 = 242498^2 + 76725^2 .

It is a cyclic number.

It is not a de Polignac number, because 64692005629 - 2¹⁹ = 64691481341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64692005659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32346002814 + 32346002815.

It is an arithmetic number, because the mean of its divisors is an integer number (32346002815).

Almost surely, 2^64692005629 is an apocalyptic number.

It is an amenable number.

64692005629 is a deficient number, since it is larger than the sum of its proper divisors (1).

64692005629 is an equidigital number, since it uses as much as digits as its factorization.

64692005629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 64692005629 in words is "sixty-four billion, six hundred ninety-two million, five thousand, six hundred twenty-nine".