2672772691 has 4 divisors (see below), whose sum is σ = 2829994632. Its totient is φ = 2515550752.

The previous prime is 2672772679. The next prime is 2672772701. The reversal of 2672772691 is 1962772762.

It is a happy number.

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 2672772691 - 2¹⁷ = 2672641619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2672772671) 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, 78610945 + ... + 78610978.

It is an arithmetic number, because the mean of its divisors is an integer number (707498658).

Almost surely, 2^2672772691 is an apocalyptic number.

2672772691 is a deficient number, since it is larger than the sum of its proper divisors (157221941).

2672772691 is a wasteful number, since it uses less digits than its factorization.

2672772691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157221940.

The product of its digits is 889056, while the sum is 49.

The square root of 2672772691 is about 51698.8654711107. The cubic root of 2672772691 is about 1387.7801620882.

The spelling of 2672772691 in words is "two billion, six hundred seventy-two million, seven hundred seventy-two thousand, six hundred ninety-one".