20078754462745 has 32 divisors (see below), whose sum is σ = 26476224405120. Its totient is φ = 14496465024000.

The previous prime is 20078754462737. The next prime is 20078754462757. The reversal of 20078754462745 is 54726445787002.

It is not a de Polignac number, because 20078754462745 - 2³ = 20078754462737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97148815 + ... + 97355275.

It is an arithmetic number, because the mean of its divisors is an integer number (827382012660).

Almost surely, 2^{20078754462745} is an apocalyptic number.

It is an amenable number.

20078754462745 is a deficient number, since it is larger than the sum of its proper divisors (6397469942375).

20078754462745 is a wasteful number, since it uses less digits than its factorization.

20078754462745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219337.

The product of its (nonzero) digits is 105369600, while the sum is 61.

The spelling of 20078754462745 in words is "twenty trillion, seventy-eight billion, seven hundred fifty-four million, four hundred sixty-two thousand, seven hundred forty-five".