30882971977978 has 32 divisors (see below), whose sum is σ = 48363988529664. Its totient is φ = 14762350869552.

The previous prime is 30882971977843. The next prime is 30882971978021. The reversal of 30882971977978 is 87977917928803.

It is a junction number, because it is equal to n+sod(n) for n = 30882971977895 and 30882971977904.

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, 741876801 + ... + 741918427.

It is an arithmetic number, because the mean of its divisors is an integer number (1511374641552).

Almost surely, 2^{30882971977978} is an apocalyptic number.

30882971977978 is a deficient number, since it is larger than the sum of its proper divisors (17481016551686).

30882971977978 is a wasteful number, since it uses less digits than its factorization.

30882971977978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49746.

The product of its (nonzero) digits is 5377010688, while the sum is 85.

The spelling of 30882971977978 in words is "thirty trillion, eight hundred eighty-two billion, nine hundred seventy-one million, nine hundred seventy-seven thousand, nine hundred seventy-eight".