64345036357 has 4 divisors (see below), whose sum is σ = 73537184416. Its totient is φ = 55152888300.

The previous prime is 64345036351. The next prime is 64345036361. The reversal of 64345036357 is 75363054346.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64345036357 - 2³⁵ = 29985297989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64345036351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596074019 + ... + 4596074032.

It is an arithmetic number, because the mean of its divisors is an integer number (18384296104).

Almost surely, 2^64345036357 is an apocalyptic number.

It is an amenable number.

64345036357 is a deficient number, since it is larger than the sum of its proper divisors (9192148059).

64345036357 is an equidigital number, since it uses as much as digits as its factorization.

64345036357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192148058.

The product of its (nonzero) digits is 2721600, while the sum is 46.

The spelling of 64345036357 in words is "sixty-four billion, three hundred forty-five million, thirty-six thousand, three hundred fifty-seven".