64542276137 has 32 divisors (see below), whose sum is σ = 70636237056. Its totient is φ = 58810752000.

The previous prime is 64542276131. The next prime is 64542276167. The reversal of 64542276137 is 73167224546.

It is a cyclic number.

It is not a de Polignac number, because 64542276137 - 2⁴ = 64542276121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64542276091 and 64542276100.

It is not an unprimeable number, because it can be changed into a prime (64542276131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6948098 + ... + 6957380.

It is an arithmetic number, because the mean of its divisors is an integer number (2207382408).

Almost surely, 2^64542276137 is an apocalyptic number.

It is an amenable number.

64542276137 is a deficient number, since it is larger than the sum of its proper divisors (6093960919).

64542276137 is a wasteful number, since it uses less digits than its factorization.

64542276137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521.

The product of its digits is 1693440, while the sum is 47.

The spelling of 64542276137 in words is "sixty-four billion, five hundred forty-two million, two hundred seventy-six thousand, one hundred thirty-seven".