64962303780 has 288 divisors, whose sum is σ = 215112965760. Its totient is φ = 14514370560.

The previous prime is 64962303773. The next prime is 64962303811. The reversal of 64962303780 is 8730326946.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8811936 + ... + 8819304.

It is an arithmetic number, because the mean of its divisors is an integer number (746920020).

Almost surely, 2^64962303780 is an apocalyptic number.

64962303780 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 64962303780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107556482880).

64962303780 is an abundant number, since it is smaller than the sum of its proper divisors (150150661980).

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

64962303780 is a wasteful number, since it uses less digits than its factorization.

64962303780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467 (or 7446 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 64962303780 in words is "sixty-four billion, nine hundred sixty-two million, three hundred three thousand, seven hundred eighty".