7414557981 has 8 divisors (see below), whose sum is σ = 9892540704. Its totient is φ = 4939806960.

The previous prime is 7414557979. The next prime is 7414557989. The reversal of 7414557981 is 1897554147.

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

It is not a de Polignac number, because 7414557981 - 2¹ = 7414557979 is a prime.

It is a super-2 number, since 2×7414557981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7414557989) 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, 802566 + ... + 811751.

It is an arithmetic number, because the mean of its divisors is an integer number (1236567588).

Almost surely, 2^7414557981 is an apocalyptic number.

It is an amenable number.

7414557981 is a deficient number, since it is larger than the sum of its proper divisors (2477982723).

7414557981 is a wasteful number, since it uses less digits than its factorization.

7414557981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615851.

The product of its digits is 1411200, while the sum is 51.

The square root of 7414557981 is about 86107.8276406971. The cubic root of 7414557981 is about 1949.9722092029.

The spelling of 7414557981 in words is "seven billion, four hundred fourteen million, five hundred fifty-seven thousand, nine hundred eighty-one".