64747112402 has 24 divisors (see below), whose sum is σ = 117144369216. Its totient is φ = 26288299224.

The previous prime is 64747112401. The next prime is 64747112429. The reversal of 64747112402 is 20421174746.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (64747112401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6400478 + ... + 6410585.

It is an arithmetic number, because the mean of its divisors is an integer number (4881015384).

Almost surely, 2^64747112402 is an apocalyptic number.

64747112402 is a deficient number, since it is larger than the sum of its proper divisors (52397256814).

64747112402 is a wasteful number, since it uses less digits than its factorization.

64747112402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12811110 (or 12811091 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 64747112402 in words is "sixty-four billion, seven hundred forty-seven million, one hundred twelve thousand, four hundred two".