64950780 has 48 divisors (see below), whose sum is σ = 182286720. Its totient is φ = 17279808.

The previous prime is 64950779. The next prime is 64950791. The reversal of 64950780 is 8705946.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31831 + ... + 33809.

It is an arithmetic number, because the mean of its divisors is an integer number (3797640).

Almost surely, 2^64950780 is an apocalyptic number.

64950780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64950780 is an abundant number, since it is smaller than the sum of its proper divisors (117335940).

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

64950780 is a wasteful number, since it uses less digits than its factorization.

64950780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538 (or 2536 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 64950780 is about 8059.2046754007. The cubic root of 64950780 is about 401.9710629897.

The spelling of 64950780 in words is "sixty-four million, nine hundred fifty thousand, seven hundred eighty".