30197788378 has 16 divisors (see below), whose sum is σ = 45603170496. Its totient is φ = 14997075840.

The previous prime is 30197788351. The next prime is 30197788409. The reversal of 30197788378 is 87388779103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90250 + ... + 261802.

It is an arithmetic number, because the mean of its divisors is an integer number (2850198156).

Almost surely, 2^30197788378 is an apocalyptic number.

30197788378 is a deficient number, since it is larger than the sum of its proper divisors (15405382118).

30197788378 is a wasteful number, since it uses less digits than its factorization.

30197788378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172149.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 30197788378 in words is "thirty billion, one hundred ninety-seven million, seven hundred eighty-eight thousand, three hundred seventy-eight".