7421401155 has 32 divisors (see below), whose sum is σ = 13575744000. Its totient is φ = 3391345152.

The previous prime is 7421401151. The next prime is 7421401171. The reversal of 7421401155 is 5511041247.

It is not a de Polignac number, because 7421401155 - 2² = 7421401151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7421401151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296571 + ... + 320619.

It is an arithmetic number, because the mean of its divisors is an integer number (424242000).

Almost surely, 2^7421401155 is an apocalyptic number.

7421401155 is a deficient number, since it is larger than the sum of its proper divisors (6154342845).

7421401155 is a wasteful number, since it uses less digits than its factorization.

7421401155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27003.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 7421401155 is about 86147.5545503179. The cubic root of 7421401155 is about 1950.5719256002.

The spelling of 7421401155 in words is "seven billion, four hundred twenty-one million, four hundred one thousand, one hundred fifty-five".