30378838636 has 48 divisors (see below), whose sum is σ = 59512168800. Its totient is φ = 13484233728.

The previous prime is 30378838621. The next prime is 30378838639. The reversal of 30378838636 is 63683887303.

It is not an unprimeable number, because it can be changed into a prime (30378838639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244530 + ... + 347206.

It is an arithmetic number, because the mean of its divisors is an integer number (1239836850).

Almost surely, 2^30378838636 is an apocalyptic number.

It is an amenable number.

30378838636 is a deficient number, since it is larger than the sum of its proper divisors (29133330164).

30378838636 is a wasteful number, since it uses less digits than its factorization.

30378838636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102946 (or 102944 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 30378838636 in words is "thirty billion, three hundred seventy-eight million, eight hundred thirty-eight thousand, six hundred thirty-six".