65427479040 has 1280 divisors, whose sum is σ = 278766157824. Its totient is φ = 12695961600.

The previous prime is 65427478999. The next prime is 65427479053. The reversal of 65427479040 is 4097472456.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 788282839 + ... + 788282921.

Almost surely, 2^65427479040 is an apocalyptic number.

65427479040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65427479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139383078912).

65427479040 is an abundant number, since it is smaller than the sum of its proper divisors (213338678784).

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

65427479040 is a wasteful number, since it uses less digits than its factorization.

65427479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 65427479040 in words is "sixty-five billion, four hundred twenty-seven million, four hundred seventy-nine thousand, forty".