64958431749 has 8 divisors (see below), whose sum is σ = 86617344960. Its totient is φ = 43302569856.

The previous prime is 64958431663. The next prime is 64958431753. The reversal of 64958431749 is 94713485946.

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

It is not a de Polignac number, because 64958431749 - 2⁸ = 64958431493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64958431692 and 64958431701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64958435749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712684 + ... + 798645.

It is an arithmetic number, because the mean of its divisors is an integer number (10827168120).

Almost surely, 2^64958431749 is an apocalyptic number.

It is an amenable number.

64958431749 is a deficient number, since it is larger than the sum of its proper divisors (21658913211).

64958431749 is a wasteful number, since it uses less digits than its factorization.

64958431749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525659.

The product of its digits is 26127360, while the sum is 60.

The spelling of 64958431749 in words is "sixty-four billion, nine hundred fifty-eight million, four hundred thirty-one thousand, seven hundred forty-nine".