7121436290 has 16 divisors (see below), whose sum is σ = 13035850560. Its totient is φ = 2800293360.

The previous prime is 7121436263. The next prime is 7121436307. The reversal of 7121436290 is 926341217.

It is a self number, because there is not a number n which added to its sum of digits gives 7121436290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6034526 + ... + 6035705.

It is an arithmetic number, because the mean of its divisors is an integer number (814740660).

Almost surely, 2^7121436290 is an apocalyptic number.

7121436290 is a deficient number, since it is larger than the sum of its proper divisors (5914414270).

7121436290 is a wasteful number, since it uses less digits than its factorization.

7121436290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12070297.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7121436290 is about 84388.6028442230. The cubic root of 7121436290 is about 1923.9296947799.

The spelling of 7121436290 in words is "seven billion, one hundred twenty-one million, four hundred thirty-six thousand, two hundred ninety".