127664703390 has 96 divisors (see below), whose sum is σ = 362262197664. Its totient is φ = 28702114560.

The previous prime is 127664703367. The next prime is 127664703443. The reversal of 127664703390 is 93307466721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 622189 + ... + 801528.

It is an arithmetic number, because the mean of its divisors is an integer number (3773564559).

Almost surely, 2^127664703390 is an apocalyptic number.

127664703390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127664703390 is an abundant number, since it is smaller than the sum of its proper divisors (234597494274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127664703390 is a wasteful number, since it uses less digits than its factorization.

127664703390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423802 (or 1423795 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 127664703390 in words is "one hundred twenty-seven billion, six hundred sixty-four million, seven hundred three thousand, three hundred ninety".