1078737681 has 16 divisors (see below), whose sum is σ = 1647355904. Its totient is φ = 615084624.

The previous prime is 1078737661. The next prime is 1078737731. The reversal of 1078737681 is 1867378701.

It is not a de Polignac number, because 1078737681 - 2¹³ = 1078729489 is a prime.

It is a super-2 number, since 2×1078737681² = 2327349968818515522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078737681.

It is not an unprimeable number, because it can be changed into a prime (1078737641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45751 + ... + 65196.

It is an arithmetic number, because the mean of its divisors is an integer number (102959744).

Almost surely, 2^1078737681 is an apocalyptic number.

It is an amenable number.

1078737681 is a deficient number, since it is larger than the sum of its proper divisors (568618223).

1078737681 is a wasteful number, since it uses less digits than its factorization.

1078737681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111420.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 1078737681 is about 32844.1422631190. The cubic root of 1078737681 is about 1025.5856834414.

The spelling of 1078737681 in words is "one billion, seventy-eight million, seven hundred thirty-seven thousand, six hundred eighty-one".