634672362450 has 192 divisors, whose sum is σ = 1903443886080. Its totient is φ = 136712448000.

The previous prime is 634672362413. The next prime is 634672362487. The reversal of 634672362450 is 54263276436.

It is an interprime number because it is at equal distance from previous prime (634672362413) and next prime (634672362487).

It is a self number, because there is not a number n which added to its sum of digits gives 634672362450.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3727170 + ... + 3893730.

It is an arithmetic number, because the mean of its divisors is an integer number (9913770240).

Almost surely, 2^634672362450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634672362450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951721943040).

634672362450 is an abundant number, since it is smaller than the sum of its proper divisors (1268771523630).

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

634672362450 is a wasteful number, since it uses less digits than its factorization.

634672362450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166793 (or 166788 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 48.

The spelling of 634672362450 in words is "six hundred thirty-four billion, six hundred seventy-two million, three hundred sixty-two thousand, four hundred fifty".