2578669690 has 16 divisors (see below), whose sum is σ = 4642274592. Its totient is φ = 1031319184.

The previous prime is 2578669673. The next prime is 2578669693. The reversal of 2578669690 is 969668752.

2578669690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2578669690² = 13299074740249392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2578669693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78297 + ... + 106243.

It is an arithmetic number, because the mean of its divisors is an integer number (290142162).

Almost surely, 2^2578669690 is an apocalyptic number.

2578669690 is a deficient number, since it is larger than the sum of its proper divisors (2063604902).

2578669690 is a wasteful number, since it uses less digits than its factorization.

2578669690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37181.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The square root of 2578669690 is about 50780.6034820383. The cubic root of 2578669690 is about 1371.2981975881.

The spelling of 2578669690 in words is "two billion, five hundred seventy-eight million, six hundred sixty-nine thousand, six hundred ninety".