121374651827 has 8 divisors (see below), whose sum is σ = 142593996720. Its totient is φ = 101852854560.

The previous prime is 121374651787. The next prime is 121374651877. The reversal of 121374651827 is 728156473121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121374651827 - 2¹⁴ = 121374635443 is a prime.

It is a super-4 number, since 4×121374651827⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121374651877) 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, 424386752 + ... + 424387037.

It is an arithmetic number, because the mean of its divisors is an integer number (17824249590).

Almost surely, 2^121374651827 is an apocalyptic number.

121374651827 is a deficient number, since it is larger than the sum of its proper divisors (21219344893).

121374651827 is a wasteful number, since it uses less digits than its factorization.

121374651827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848773813.

The product of its digits is 564480, while the sum is 47.

The spelling of 121374651827 in words is "one hundred twenty-one billion, three hundred seventy-four million, six hundred fifty-one thousand, eight hundred twenty-seven".