64948914151 has 4 divisors (see below), whose sum is σ = 70853360904. Its totient is φ = 59044467400.

The previous prime is 64948914139. The next prime is 64948914187. The reversal of 64948914151 is 15141984946.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64948914151 - 2⁹ = 64948913639 is a prime.

It is a super-2 number, since 2×64948914151² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64948914101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952223360 + ... + 2952223381.

It is an arithmetic number, because the mean of its divisors is an integer number (17713340226).

Almost surely, 2^64948914151 is an apocalyptic number.

64948914151 is a deficient number, since it is larger than the sum of its proper divisors (5904446753).

64948914151 is a wasteful number, since it uses less digits than its factorization.

64948914151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904446752.

The product of its digits is 1244160, while the sum is 52.

The spelling of 64948914151 in words is "sixty-four billion, nine hundred forty-eight million, nine hundred fourteen thousand, one hundred fifty-one".