2121461626 has 32 divisors (see below), whose sum is σ = 3449069568. Its totient is φ = 975751920.

The previous prime is 2121461593. The next prime is 2121461743. The reversal of 2121461626 is 6261641212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227875 + ... + 237001.

It is an arithmetic number, because the mean of its divisors is an integer number (107783424).

Almost surely, 2^2121461626 is an apocalyptic number.

2121461626 is a deficient number, since it is larger than the sum of its proper divisors (1327607942).

2121461626 is a wasteful number, since it uses less digits than its factorization.

2121461626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346.

The product of its digits is 6912, while the sum is 31.

The square root of 2121461626 is about 46059.3272421558. The cubic root of 2121461626 is about 1284.9268180401.

The spelling of 2121461626 in words is "two billion, one hundred twenty-one million, four hundred sixty-one thousand, six hundred twenty-six".