121647425498 has 32 divisors (see below), whose sum is σ = 188868056832. Its totient is φ = 58723113600.

The previous prime is 121647425423. The next prime is 121647425503. The reversal of 121647425498 is 894524746121.

It is a happy number.

It is a super-2 number, since 2×121647425498² (a number of 23 digits) contains 22 as substring.

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, 14632763 + ... + 14641073.

It is an arithmetic number, because the mean of its divisors is an integer number (5902126776).

Almost surely, 2^121647425498 is an apocalyptic number.

121647425498 is a deficient number, since it is larger than the sum of its proper divisors (67220631334).

121647425498 is a wasteful number, since it uses less digits than its factorization.

121647425498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190.

The product of its digits is 3870720, while the sum is 53.

The spelling of 121647425498 in words is "one hundred twenty-one billion, six hundred forty-seven million, four hundred twenty-five thousand, four hundred ninety-eight".