427121512508 has 12 divisors (see below), whose sum is σ = 747484484040. Its totient is φ = 213554517072.

The previous prime is 427121512507. The next prime is 427121512553. The reversal of 427121512508 is 805215121724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427121512507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404038 + ... + 1680941.

It is an arithmetic number, because the mean of its divisors is an integer number (62290373670).

Almost surely, 2^427121512508 is an apocalyptic number.

It is an amenable number.

427121512508 is a deficient number, since it is larger than the sum of its proper divisors (320362971532).

427121512508 is a wasteful number, since it uses less digits than its factorization.

427121512508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119596 (or 3119594 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 427121512508 in words is "four hundred twenty-seven billion, one hundred twenty-one million, five hundred twelve thousand, five hundred eight".