64406371460 has 24 divisors (see below), whose sum is σ = 141133962816. Its totient is φ = 24642437600.

The previous prime is 64406371429. The next prime is 64406371481. The reversal of 64406371460 is 6417360446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70006466 + ... + 70007385.

It is an arithmetic number, because the mean of its divisors is an integer number (5880581784).

Almost surely, 2^64406371460 is an apocalyptic number.

It is an amenable number.

64406371460 is an abundant number, since it is smaller than the sum of its proper divisors (76727591356).

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

64406371460 is a wasteful number, since it uses less digits than its factorization.

64406371460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140013883 (or 140013881 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 64406371460 in words is "sixty-four billion, four hundred six million, three hundred seventy-one thousand, four hundred sixty".