75121215027 has 8 divisors (see below), whose sum is σ = 100197390480. Its totient is φ = 50062924800.

The previous prime is 75121214989. The next prime is 75121215049. The reversal of 75121215027 is 72051212157.

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

It is not a de Polignac number, because 75121215027 - 2⁷ = 75121214899 is a prime.

It is a super-2 number, since 2×75121215027² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75121215077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461502 + ... + 4478307.

It is an arithmetic number, because the mean of its divisors is an integer number (12524673810).

Almost surely, 2^75121215027 is an apocalyptic number.

75121215027 is a deficient number, since it is larger than the sum of its proper divisors (25076175453).

75121215027 is a wasteful number, since it uses less digits than its factorization.

75121215027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942613.

The product of its (nonzero) digits is 9800, while the sum is 33.

The spelling of 75121215027 in words is "seventy-five billion, one hundred twenty-one million, two hundred fifteen thousand, twenty-seven".