427157907890 has 32 divisors (see below), whose sum is σ = 880091533440. Its totient is φ = 146226357504.

The previous prime is 427157907863. The next prime is 427157907923. The reversal of 427157907890 is 98709751724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4700135 + ... + 4790154.

It is an arithmetic number, because the mean of its divisors is an integer number (27502860420).

Almost surely, 2^427157907890 is an apocalyptic number.

427157907890 is an abundant number, since it is smaller than the sum of its proper divisors (452933625550).

427157907890 is a wasteful number, since it uses less digits than its factorization.

427157907890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490946.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 427157907890 in words is "four hundred twenty-seven billion, one hundred fifty-seven million, nine hundred seven thousand, eight hundred ninety".