6151738881 has 16 divisors (see below), whose sum is σ = 8919535104. Its totient is φ = 3755591424.

The previous prime is 6151738877. The next prime is 6151738969. The reversal of 6151738881 is 1888371516.

It is not a de Polignac number, because 6151738881 - 2² = 6151738877 is a prime.

It is a super-2 number, since 2×6151738881² = 75687782520014264322, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6151738881.

It is not an unprimeable number, because it can be changed into a prime (6151738381) 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, 1628145 + ... + 1631918.

It is an arithmetic number, because the mean of its divisors is an integer number (557470944).

Almost surely, 2^6151738881 is an apocalyptic number.

It is an amenable number.

6151738881 is a deficient number, since it is larger than the sum of its proper divisors (2767796223).

6151738881 is a wasteful number, since it uses less digits than its factorization.

6151738881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260120.

The product of its digits is 322560, while the sum is 48.

The square root of 6151738881 is about 78433.0216235483. The cubic root of 6151738881 is about 1832.3114591299.

The spelling of 6151738881 in words is "six billion, one hundred fifty-one million, seven hundred thirty-eight thousand, eight hundred eighty-one".