64126454253 has 16 divisors (see below), whose sum is σ = 86042973120. Its totient is φ = 42480958464.

The previous prime is 64126454237. The next prime is 64126454303. The reversal of 64126454253 is 35245462146.

It is a happy number.

It is not a de Polignac number, because 64126454253 - 2⁴ = 64126454237 is a prime.

It is a super-2 number, since 2×64126454253² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64126454213) 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, 448543 + ... + 573971.

It is an arithmetic number, because the mean of its divisors is an integer number (5377685820).

Almost surely, 2^64126454253 is an apocalyptic number.

It is an amenable number.

64126454253 is a deficient number, since it is larger than the sum of its proper divisors (21916518867).

64126454253 is a wasteful number, since it uses less digits than its factorization.

64126454253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126508.

The product of its digits is 691200, while the sum is 42.

The spelling of 64126454253 in words is "sixty-four billion, one hundred twenty-six million, four hundred fifty-four thousand, two hundred fifty-three".