7091421451 has 4 divisors (see below), whose sum is σ = 7128549504. Its totient is φ = 7054293400.

The previous prime is 7091421413. The next prime is 7091421481. The reversal of 7091421451 is 1541241907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1541241907 = 47 ⋅32792381.

It is a cyclic number.

It is not a de Polignac number, because 7091421451 - 2²¹ = 7089324299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7091421401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18563740 + ... + 18564121.

It is an arithmetic number, because the mean of its divisors is an integer number (1782137376).

Almost surely, 2^7091421451 is an apocalyptic number.

7091421451 is a deficient number, since it is larger than the sum of its proper divisors (37128053).

7091421451 is a wasteful number, since it uses less digits than its factorization.

7091421451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37128052.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7091421451 is about 84210.5780231914. The cubic root of 7091421451 is about 1921.2229487209. Note that the first 3 decimals are identical.

The spelling of 7091421451 in words is "seven billion, ninety-one million, four hundred twenty-one thousand, four hundred fifty-one".