63929343474 has 48 divisors (see below), whose sum is σ = 146984309472. Its totient is φ = 20814198048.

The previous prime is 63929343473. The next prime is 63929343493. The reversal of 63929343474 is 47434392936.

It is a happy number.

63929343474 is a `hidden beast` number, since 6 + 3 + 9 + 293 + 4 + 347 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 63929343474.

It is not an unprimeable number, because it can be changed into a prime (63929343473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1508659 + ... + 1550454.

It is an arithmetic number, because the mean of its divisors is an integer number (3062173114).

Almost surely, 2^63929343474 is an apocalyptic number.

63929343474 is an abundant number, since it is smaller than the sum of its proper divisors (83054965998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63929343474 is a wasteful number, since it uses less digits than its factorization.

63929343474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059173 (or 3059161 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 54.

The spelling of 63929343474 in words is "sixty-three billion, nine hundred twenty-nine million, three hundred forty-three thousand, four hundred seventy-four".