2614161981 has 16 divisors (see below), whose sum is σ = 3561041408. Its totient is φ = 1705374000.

The previous prime is 2614161959. The next prime is 2614161997. The reversal of 2614161981 is 1891614162.

It is not a de Polignac number, because 2614161981 - 2⁹ = 2614161469 is a prime.

It is a super-2 number, since 2×2614161981² = 13667685725811688722, 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 (2614161581) 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, 12715 + ... + 73416.

It is an arithmetic number, because the mean of its divisors is an integer number (222565088).

Almost surely, 2^2614161981 is an apocalyptic number.

It is an amenable number.

2614161981 is a deficient number, since it is larger than the sum of its proper divisors (946879427).

2614161981 is a wasteful number, since it uses less digits than its factorization.

2614161981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86352.

The product of its digits is 20736, while the sum is 39.

The square root of 2614161981 is about 51128.8761953556. The cubic root of 2614161981 is about 1377.5609758659.

The spelling of 2614161981 in words is "two billion, six hundred fourteen million, one hundred sixty-one thousand, nine hundred eighty-one".