64126657154 has 8 divisors (see below), whose sum is σ = 109931412288. Its totient is φ = 27482853060.

The previous prime is 64126657057. The next prime is 64126657159. The reversal of 64126657154 is 45175662146.

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

It is a super-2 number, since 2×64126657154² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64126657099 and 64126657108.

It is not an unprimeable number, because it can be changed into a prime (64126657159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290237742 + ... + 2290237769.

It is an arithmetic number, because the mean of its divisors is an integer number (13741426536).

Almost surely, 2^64126657154 is an apocalyptic number.

64126657154 is a deficient number, since it is larger than the sum of its proper divisors (45804755134).

64126657154 is a wasteful number, since it uses less digits than its factorization.

64126657154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580475520.

The product of its digits is 1209600, while the sum is 47.

The spelling of 64126657154 in words is "sixty-four billion, one hundred twenty-six million, six hundred fifty-seven thousand, one hundred fifty-four".