68822511450 has 576 divisors, whose sum is σ = 226713168000. Its totient is φ = 13645363200.

The previous prime is 68822511427. The next prime is 68822511463. The reversal of 68822511450 is 5411522886.

It is a super-2 number, since 2×68822511450² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 349352752 + ... + 349352948.

It is an arithmetic number, because the mean of its divisors is an integer number (393599250).

Almost surely, 2^68822511450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68822511450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113356584000).

68822511450 is an abundant number, since it is smaller than the sum of its proper divisors (157890656550).

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

68822511450 is a wasteful number, since it uses less digits than its factorization.

68822511450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 68822511450 in words is "sixty-eight billion, eight hundred twenty-two million, five hundred eleven thousand, four hundred fifty".