427042977997 has 8 divisors (see below), whose sum is σ = 437708015712. Its totient is φ = 416504154000.

The previous prime is 427042977989. The next prime is 427042978013. The reversal of 427042977997 is 799779240724.

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

It is a cyclic number.

It is not a de Polignac number, because 427042977997 - 2³ = 427042977989 is a prime.

It is a super-2 number, since 2×427042977997² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427042977967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31546579 + ... + 31560112.

It is an arithmetic number, because the mean of its divisors is an integer number (54713501964).

Almost surely, 2^427042977997 is an apocalyptic number.

It is an amenable number.

427042977997 is a deficient number, since it is larger than the sum of its proper divisors (10665037715).

427042977997 is a wasteful number, since it uses less digits than its factorization.

427042977997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63106859.

The product of its (nonzero) digits is 112021056, while the sum is 67.

The spelling of 427042977997 in words is "four hundred twenty-seven billion, forty-two million, nine hundred seventy-seven thousand, nine hundred ninety-seven".