64400003707 has 8 divisors (see below), whose sum is σ = 71745362640. Its totient is φ = 57396289440.

The previous prime is 64400003671. The next prime is 64400003747. The reversal of 64400003707 is 70730000446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64400003707 is a prime.

It is a super-2 number, since 2×64400003707² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64400003747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85410769 + ... + 85411522.

It is an arithmetic number, because the mean of its divisors is an integer number (8968170330).

Almost surely, 2^64400003707 is an apocalyptic number.

64400003707 is a deficient number, since it is larger than the sum of its proper divisors (7345358933).

64400003707 is a wasteful number, since it uses less digits than its factorization.

64400003707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170822333.

The product of its (nonzero) digits is 14112, while the sum is 31.

The spelling of 64400003707 in words is "sixty-four billion, four hundred million, three thousand, seven hundred seven".