4975215326640 has 400 divisors, whose sum is σ = 18614855198016. Its totient is φ = 1224274176000.

The previous prime is 4975215326633. The next prime is 4975215326651. The reversal of 4975215326640 is 466235125794.

It is a happy number.

4975215326640 is a `hidden beast` number, since 4 + 9 + 7 + 5 + 2 + 1 + 532 + 66 + 40 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 329455090 + ... + 329470190.

Almost surely, 2^{4975215326640} is an apocalyptic number.

4975215326640 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 4975215326640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9307427599008).

4975215326640 is an abundant number, since it is smaller than the sum of its proper divisors (13639639871376).

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

4975215326640 is a wasteful number, since it uses less digits than its factorization.

4975215326640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19050 (or 19035 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 4975215326640 in words is "four trillion, nine hundred seventy-five billion, two hundred fifteen million, three hundred twenty-six thousand, six hundred forty".