20127777400774 has 8 divisors (see below), whose sum is σ = 30555421114680. Its totient is φ = 9942637029216.

The previous prime is 20127777400763. The next prime is 20127777400799. The reversal of 20127777400774 is 47700477772102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60625835379 + ... + 60625835710.

It is an arithmetic number, because the mean of its divisors is an integer number (3819427639335).

Almost surely, 2^{20127777400774} is an apocalyptic number.

20127777400774 is a deficient number, since it is larger than the sum of its proper divisors (10427643713906).

20127777400774 is a wasteful number, since it uses less digits than its factorization.

20127777400774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121251671174.

The product of its (nonzero) digits is 7529536, while the sum is 55.

The spelling of 20127777400774 in words is "twenty trillion, one hundred twenty-seven billion, seven hundred seventy-seven million, four hundred thousand, seven hundred seventy-four".