74975345713978 has 16 divisors (see below), whose sum is σ = 116738731528704. Its totient is φ = 36088586354160.

The previous prime is 74975345713963. The next prime is 74975345714021. The reversal of 74975345713978 is 87931754357947.

It is a junction number, because it is equal to n+sod(n) for n = 74975345713898 and 74975345713907.

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, 6537781650 + ... + 6537793117.

It is an arithmetic number, because the mean of its divisors is an integer number (7296170720544).

Almost surely, 2^{74975345713978} is an apocalyptic number.

74975345713978 is a deficient number, since it is larger than the sum of its proper divisors (41763385814726).

74975345713978 is a wasteful number, since it uses less digits than its factorization.

74975345713978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075574877.

The product of its digits is 5601052800, while the sum is 79.

The spelling of 74975345713978 in words is "seventy-four trillion, nine hundred seventy-five billion, three hundred forty-five million, seven hundred thirteen thousand, nine hundred seventy-eight".