64740950907 has 16 divisors (see below), whose sum is σ = 89309280000. Its totient is φ = 41667008544.

The previous prime is 64740950867. The next prime is 64740950921. The reversal of 64740950907 is 70905904746.

It is not a de Polignac number, because 64740950907 - 2¹² = 64740946811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64740950907.

It is not an unprimeable number, because it can be changed into a prime (64740950977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704844 + ... + 791382.

It is an arithmetic number, because the mean of its divisors is an integer number (5581830000).

Almost surely, 2^64740950907 is an apocalyptic number.

64740950907 is a deficient number, since it is larger than the sum of its proper divisors (24568329093).

64740950907 is a wasteful number, since it uses less digits than its factorization.

64740950907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95170.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 64740950907 in words is "sixty-four billion, seven hundred forty million, nine hundred fifty thousand, nine hundred seven".