629457647481 has 16 divisors (see below), whose sum is σ = 1004262913920. Its totient is φ = 387358552080.

The previous prime is 629457647449. The next prime is 629457647501. The reversal of 629457647481 is 184746754926.

629457647481 is a `hidden beast` number, since 6 + 2 + 9 + 45 + 76 + 47 + 481 = 666.

It is not a de Polignac number, because 629457647481 - 2⁵ = 629457647449 is a prime.

It is a super-2 number, since 2×629457647481² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (629457647411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896662965 + ... + 896663666.

It is an arithmetic number, because the mean of its divisors is an integer number (62766432120).

Almost surely, 2^629457647481 is an apocalyptic number.

It is an amenable number.

629457647481 is a deficient number, since it is larger than the sum of its proper divisors (374805266439).

629457647481 is a wasteful number, since it uses less digits than its factorization.

629457647481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793326653 (or 1793326647 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 629457647481 in words is "six hundred twenty-nine billion, four hundred fifty-seven million, six hundred forty-seven thousand, four hundred eighty-one".