1427352861 has 16 divisors (see below), whose sum is σ = 2198276928. Its totient is φ = 814176000.

The previous prime is 1427352851. The next prime is 1427352877. The reversal of 1427352861 is 1682537241.

It is not a de Polignac number, because 1427352861 - 2⁷ = 1427352733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427352821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271590 + ... + 1272711.

It is an arithmetic number, because the mean of its divisors is an integer number (137392308).

Almost surely, 2^1427352861 is an apocalyptic number.

1427352861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1427352861 is a deficient number, since it is larger than the sum of its proper divisors (770924067).

1427352861 is a wasteful number, since it uses less digits than its factorization.

1427352861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544332.

The product of its digits is 80640, while the sum is 39.

The square root of 1427352861 is about 37780.3237280995. The cubic root of 1427352861 is about 1125.9275605486.

The spelling of 1427352861 in words is "one billion, four hundred twenty-seven million, three hundred fifty-two thousand, eight hundred sixty-one".