2641555790 has 64 divisors (see below), whose sum is σ = 5011554240. Its totient is φ = 1001333760.

The previous prime is 2641555789. The next prime is 2641555793. The reversal of 2641555790 is 975551462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641555793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4742192 + ... + 4742748.

It is an arithmetic number, because the mean of its divisors is an integer number (78305535).

Almost surely, 2^2641555790 is an apocalyptic number.

2641555790 is a deficient number, since it is larger than the sum of its proper divisors (2369998450).

2641555790 is a wasteful number, since it uses less digits than its factorization.

2641555790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 2641555790 is about 51396.0678457020. The cubic root of 2641555790 is about 1382.3560868131.

The spelling of 2641555790 in words is "two billion, six hundred forty-one million, five hundred fifty-five thousand, seven hundred ninety".