74268215280 has 320 divisors, whose sum is σ = 301790208000. Its totient is φ = 16427888640.

The previous prime is 74268215267. The next prime is 74268215291. The reversal of 74268215280 is 8251286247.

74268215280 is a `hidden beast` number, since 7 + 42 + 6 + 82 + 1 + 528 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 389496 + ... + 547944.

It is an arithmetic number, because the mean of its divisors is an integer number (943094400).

Almost surely, 2^74268215280 is an apocalyptic number.

74268215280 is a gapful number since it is divisible by the number (70) 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 74268215280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150895104000).

74268215280 is an abundant number, since it is smaller than the sum of its proper divisors (227521992720).

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

74268215280 is a wasteful number, since it uses less digits than its factorization.

74268215280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158509 (or 158497 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 74268215280 in words is "seventy-four billion, two hundred sixty-eight million, two hundred fifteen thousand, two hundred eighty".