64423266740 has 48 divisors (see below), whose sum is σ = 154635796224. Its totient is φ = 22085126400.

The previous prime is 64423266737. The next prime is 64423266767. The reversal of 64423266740 is 4766232446.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64423266691 and 64423266700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257425 + ... + 1307655.

It is an arithmetic number, because the mean of its divisors is an integer number (3221579088).

Almost surely, 2^64423266740 is an apocalyptic number.

It is an amenable number.

64423266740 is an abundant number, since it is smaller than the sum of its proper divisors (90212529484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64423266740 is a wasteful number, since it uses less digits than its factorization.

64423266740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59408 (or 59406 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 44.

The spelling of 64423266740 in words is "sixty-four billion, four hundred twenty-three million, two hundred sixty-six thousand, seven hundred forty".