1027680551 has 4 divisors (see below), whose sum is σ = 1029391104. Its totient is φ = 1025970000.

The previous prime is 1027680541. The next prime is 1027680581. The reversal of 1027680551 is 1550867201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1027680551 - 2⁶ = 1027680487 is a prime.

It is a super-2 number, since 2×1027680551² = 2112254629807327202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027680541) 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, 854375 + ... + 855576.

It is an arithmetic number, because the mean of its divisors is an integer number (257347776).

Almost surely, 2^1027680551 is an apocalyptic number.

1027680551 is a deficient number, since it is larger than the sum of its proper divisors (1710553).

1027680551 is an equidigital number, since it uses as much as digits as its factorization.

1027680551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710552.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 1027680551 is about 32057.4570264081. The cubic root of 1027680551 is about 1009.1430010962.

The spelling of 1027680551 in words is "one billion, twenty-seven million, six hundred eighty thousand, five hundred fifty-one".