2736212981 has 4 divisors (see below), whose sum is σ = 2774751264. Its totient is φ = 2697674700.

The previous prime is 2736212929. The next prime is 2736213013. The reversal of 2736212981 is 1892126372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2736212981 - 2¹⁸ = 2735950837 is a prime.

It is a super-2 number, since 2×2736212981² = 14973722954785812722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2736212681) 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, 19269035 + ... + 19269176.

It is an arithmetic number, because the mean of its divisors is an integer number (693687816).

Almost surely, 2^2736212981 is an apocalyptic number.

It is an amenable number.

2736212981 is a deficient number, since it is larger than the sum of its proper divisors (38538283).

2736212981 is an equidigital number, since it uses as much as digits as its factorization.

2736212981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38538282.

The product of its digits is 72576, while the sum is 41.

The square root of 2736212981 is about 52308.8231658867. The cubic root of 2736212981 is about 1398.6744223254.

The spelling of 2736212981 in words is "two billion, seven hundred thirty-six million, two hundred twelve thousand, nine hundred eighty-one".