623361977280 has 1680 divisors, whose sum is σ = 2769848395776. Its totient is φ = 130203832320.

The previous prime is 623361977257. The next prime is 623361977297. The reversal of 623361977280 is 82779163326.

623361977280 is a `hidden beast` number, since 6 + 233 + 61 + 9 + 77 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2030494887 + ... + 2030495193.

Almost surely, 2^623361977280 is an apocalyptic number.

623361977280 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 623361977280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384924197888).

623361977280 is an abundant number, since it is smaller than the sum of its proper divisors (2146486418496).

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

623361977280 is a wasteful number, since it uses less digits than its factorization.

623361977280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 623361977280 in words is "six hundred twenty-three billion, three hundred sixty-one million, nine hundred seventy-seven thousand, two hundred eighty".