1067978651 has 8 divisors (see below), whose sum is σ = 1075995120. Its totient is φ = 1059983712.

The previous prime is 1067978629. The next prime is 1067978669. The reversal of 1067978651 is 1568797601.

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 1067978651 - 2²⁶ = 1000869787 is a prime.

It is a super-2 number, since 2×1067978651² = 2281156797983559602, 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 1067978651.

It is not an unprimeable number, because it can be changed into a prime (1067978671) 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, 102101 + ... + 112073.

It is an arithmetic number, because the mean of its divisors is an integer number (134499390).

Almost surely, 2^1067978651 is an apocalyptic number.

1067978651 is a deficient number, since it is larger than the sum of its proper divisors (8016469).

1067978651 is an equidigital number, since it uses as much as digits as its factorization.

1067978651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10765.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 1067978651 is about 32679.9426407085. The cubic root of 1067978651 is about 1022.1646490447.

The spelling of 1067978651 in words is "one billion, sixty-seven million, nine hundred seventy-eight thousand, six hundred fifty-one".