64736863746 has 16 divisors (see below), whose sum is σ = 129508680000. Its totient is φ = 21573129168.

The previous prime is 64736863739. The next prime is 64736863781.

It is a happy number.

64736863746 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 64736863746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432246 + ... + 1476753.

It is an arithmetic number, because the mean of its divisors is an integer number (8094292500).

Almost surely, 2^64736863746 is an apocalyptic number.

64736863746 is an abundant number, since it is smaller than the sum of its proper divisors (64771816254).

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

64736863746 is a wasteful number, since it uses less digits than its factorization.

64736863746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912713.

The product of its digits is 73156608, while the sum is 60.

The spelling of 64736863746 in words is "sixty-four billion, seven hundred thirty-six million, eight hundred sixty-three thousand, seven hundred forty-six".