6457988693629 has 4 divisors (see below), whose sum is σ = 7045078574880. Its totient is φ = 5870898812380.

The previous prime is 6457988693623. The next prime is 6457988693633. The reversal of 6457988693629 is 9263968897546.

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-6457988693629 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 (6457988693623) 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, 293544940609 + ... + 293544940630.

It is an arithmetic number, because the mean of its divisors is an integer number (1761269643720).

Almost surely, 2^{6457988693629} is an apocalyptic number.

It is an amenable number.

6457988693629 is a deficient number, since it is larger than the sum of its proper divisors (587089881251).

6457988693629 is a wasteful number, since it uses less digits than its factorization.

6457988693629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587089881250.

The product of its digits is 8465264640, while the sum is 82.

The spelling of 6457988693629 in words is "six trillion, four hundred fifty-seven billion, nine hundred eighty-eight million, six hundred ninety-three thousand, six hundred twenty-nine".