127452123778 has 64 divisors (see below), whose sum is σ = 234293967360. Its totient is φ = 50804278272.

The previous prime is 127452123763. The next prime is 127452123793. The reversal of 127452123778 is 877321254721.

It is an interprime number because it is at equal distance from previous prime (127452123763) and next prime (127452123793).

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, 38468650 + ... + 38471962.

It is an arithmetic number, because the mean of its divisors is an integer number (3660843240).

Almost surely, 2^127452123778 is an apocalyptic number.

127452123778 is a deficient number, since it is larger than the sum of its proper divisors (106841843582).

127452123778 is a wasteful number, since it uses less digits than its factorization.

127452123778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611.

The product of its digits is 1317120, while the sum is 49.

The spelling of 127452123778 in words is "one hundred twenty-seven billion, four hundred fifty-two million, one hundred twenty-three thousand, seven hundred seventy-eight".