94451797440 has 1792 divisors, whose sum is σ = 456843018240. Its totient is φ = 17736744960.

The previous prime is 94451797423. The next prime is 94451797441. The reversal of 94451797440 is 4479715449.

94451797440 is a `hidden beast` number, since 94 + 45 + 1 + 79 + 7 + 440 = 666.

It is a super-2 number, since 2×94451797440² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94451797441) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 579458799 + ... + 579458961.

It is an arithmetic number, because the mean of its divisors is an integer number (254934720).

Almost surely, 2^94451797440 is an apocalyptic number.

94451797440 is a gapful number since it is divisible by the number (90) 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 94451797440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228421509120).

94451797440 is an abundant number, since it is smaller than the sum of its proper divisors (362391220800).

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

94451797440 is a wasteful number, since it uses less digits than its factorization.

94451797440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 94451797440 in words is "ninety-four billion, four hundred fifty-one million, seven hundred ninety-seven thousand, four hundred forty".