65378129254 has 16 divisors (see below), whose sum is σ = 98685162576. Its totient is φ = 32483354400.

The previous prime is 65378129251. The next prime is 65378129281. The reversal of 65378129254 is 45292187356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65378129251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404044 + ... + 542224.

It is an arithmetic number, because the mean of its divisors is an integer number (6167822661).

Almost surely, 2^65378129254 is an apocalyptic number.

65378129254 is a deficient number, since it is larger than the sum of its proper divisors (33307033322).

65378129254 is a wasteful number, since it uses less digits than its factorization.

65378129254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139671.

The product of its digits is 3628800, while the sum is 52.

The spelling of 65378129254 in words is "sixty-five billion, three hundred seventy-eight million, one hundred twenty-nine thousand, two hundred fifty-four".