2961767641 has 4 divisors (see below), whose sum is σ = 3384877312. Its totient is φ = 2538657972.

The previous prime is 2961767579. The next prime is 2961767647. The reversal of 2961767641 is 1467671692.

2961767641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2961767641 - 2⁷ = 2961767513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2961767647) 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, 211554825 + ... + 211554838.

It is an arithmetic number, because the mean of its divisors is an integer number (846219328).

Almost surely, 2^2961767641 is an apocalyptic number.

It is an amenable number.

2961767641 is a deficient number, since it is larger than the sum of its proper divisors (423109671).

2961767641 is an equidigital number, since it uses as much as digits as its factorization.

2961767641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423109670.

The product of its digits is 762048, while the sum is 49.

The square root of 2961767641 is about 54422.1245542656. The cubic root of 2961767641 is about 1436.0966241434.

The spelling of 2961767641 in words is "two billion, nine hundred sixty-one million, seven hundred sixty-seven thousand, six hundred forty-one".