427734658551 has 8 divisors (see below), whose sum is σ = 570340906624. Its totient is φ = 285142424760.

The previous prime is 427734658537. The next prime is 427734658553. The reversal of 427734658551 is 155856437724.

It is a happy number.

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

It is not a de Polignac number, because 427734658551 - 2⁶ = 427734658487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427734658491 and 427734658500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427734658553) 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, 3432145 + ... + 3554586.

It is an arithmetic number, because the mean of its divisors is an integer number (71292613328).

Almost surely, 2^427734658551 is an apocalyptic number.

427734658551 is a deficient number, since it is larger than the sum of its proper divisors (142606248073).

427734658551 is a wasteful number, since it uses less digits than its factorization.

427734658551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007141.

The product of its digits is 28224000, while the sum is 57.

The spelling of 427734658551 in words is "four hundred twenty-seven billion, seven hundred thirty-four million, six hundred fifty-eight thousand, five hundred fifty-one".