64097907478 has 16 divisors (see below), whose sum is σ = 104943731904. Its totient is φ = 29119788360.

The previous prime is 64097907457. The next prime is 64097907481. The reversal of 64097907478 is 87470979046.

64097907478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×64097907478³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

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, 739200 + ... + 821347.

It is an arithmetic number, because the mean of its divisors is an integer number (6558983244).

Almost surely, 2^64097907478 is an apocalyptic number.

64097907478 is a deficient number, since it is larger than the sum of its proper divisors (40845824426).

64097907478 is a wasteful number, since it uses less digits than its factorization.

64097907478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562427.

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 64097907478 in words is "sixty-four billion, ninety-seven million, nine hundred seven thousand, four hundred seventy-eight".