5421400079 has 4 divisors (see below), whose sum is σ = 5740305984. Its totient is φ = 5102494176.

The previous prime is 5421400069. The next prime is 5421400091. The reversal of 5421400079 is 9700041245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5421400079 - 2²⁸ = 5152964623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421400069) 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, 159452927 + ... + 159452960.

It is an arithmetic number, because the mean of its divisors is an integer number (1435076496).

Almost surely, 2^5421400079 is an apocalyptic number.

5421400079 is a deficient number, since it is larger than the sum of its proper divisors (318905905).

5421400079 is a wasteful number, since it uses less digits than its factorization.

5421400079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318905904.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 5421400079 is about 73630.1574017060. The cubic root of 5421400079 is about 1756.7251515218.

The spelling of 5421400079 in words is "five billion, four hundred twenty-one million, four hundred thousand, seventy-nine".