523304661672540 has 192 divisors, whose sum is σ = 1783495542528000. Its totient is φ = 126330933576960.

The previous prime is 523304661672503. The next prime is 523304661672577. The reversal of 523304661672540 is 45276166403325.

523304661672540 is a `hidden beast` number, since 5 + 2 + 3 + 30 + 4 + 6 + 6 + 1 + 67 + 2 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (523304661672503) and next prime (523304661672577).

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 63 ways as a sum of consecutive naturals, for example, 182886675 + ... + 185725994.

It is an arithmetic number, because the mean of its divisors is an integer number (9289039284000).

Almost surely, 2^{523304661672540} is an apocalyptic number.

It is an amenable number.

523304661672540 is an abundant number, since it is smaller than the sum of its proper divisors (1260190880855460).

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

523304661672540 is a wasteful number, since it uses less digits than its factorization.

523304661672540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368612937 (or 368612929 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 54.

The spelling of 523304661672540 in words is "five hundred twenty-three trillion, three hundred four billion, six hundred sixty-one million, six hundred seventy-two thousand, five hundred forty".