497617651440 has 960 divisors, whose sum is σ = 2149639914240. Its totient is φ = 100329062400.

The previous prime is 497617651409. The next prime is 497617651451. The reversal of 497617651440 is 44156716794.

It is a happy number.

497617651440 is a `hidden beast` number, since 4 + 9 + 7 + 617 + 6 + 5 + 14 + 4 + 0 = 666.

It is a super-2 number, since 2×497617651440² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 191906784 + ... + 191909376.

It is an arithmetic number, because the mean of its divisors is an integer number (2239208244).

Almost surely, 2^497617651440 is an apocalyptic number.

497617651440 is a gapful number since it is divisible by the number (40) 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 497617651440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074819957120).

497617651440 is an abundant number, since it is smaller than the sum of its proper divisors (1652022262800).

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

497617651440 is a wasteful number, since it uses less digits than its factorization.

497617651440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2753 counting only the distinct ones).

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

The spelling of 497617651440 in words is "four hundred ninety-seven billion, six hundred seventeen million, six hundred fifty-one thousand, four hundred forty".