6870149551 has 4 divisors (see below), whose sum is σ = 6870706600. Its totient is φ = 6869592504.

The previous prime is 6870149521. The next prime is 6870149557. The reversal of 6870149551 is 1559410786.

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 6870149551 - 2⁷ = 6870149423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6870149557) 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, 259596 + ... + 284833.

It is an arithmetic number, because the mean of its divisors is an integer number (1717676650).

Almost surely, 2^6870149551 is an apocalyptic number.

6870149551 is a deficient number, since it is larger than the sum of its proper divisors (557049).

6870149551 is a wasteful number, since it uses less digits than its factorization.

6870149551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557048.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 6870149551 is about 82886.3652900765. The cubic root of 6870149551 is about 1901.0289487644.

The spelling of 6870149551 in words is "six billion, eight hundred seventy million, one hundred forty-nine thousand, five hundred fifty-one".