634274887388 has 48 divisors (see below), whose sum is σ = 1158189978624. Its totient is φ = 303646812480.

The previous prime is 634274887373. The next prime is 634274887403. The reversal of 634274887388 is 883788472436.

It is an interprime number because it is at equal distance from previous prime (634274887373) and next prime (634274887403).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9714893 + ... + 9779963.

It is an arithmetic number, because the mean of its divisors is an integer number (24128957888).

Almost surely, 2^634274887388 is an apocalyptic number.

It is an amenable number.

634274887388 is a deficient number, since it is larger than the sum of its proper divisors (523915091236).

634274887388 is a wasteful number, since it uses less digits than its factorization.

634274887388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66162 (or 66160 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 68.

The spelling of 634274887388 in words is "six hundred thirty-four billion, two hundred seventy-four million, eight hundred eighty-seven thousand, three hundred eighty-eight".