5391621431 has 8 divisors (see below), whose sum is σ = 6486161280. Its totient is φ = 4378158648.

The previous prime is 5391621419. The next prime is 5391621461. The reversal of 5391621431 is 1341261935.

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

It is a cyclic number.

It is not a de Polignac number, because 5391621431 - 2¹⁸ = 5391359287 is a prime.

It is a super-2 number, since 2×5391621431² = 58139163310436975522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5391621391 and 5391621400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391621461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20269121 + ... + 20269386.

It is an arithmetic number, because the mean of its divisors is an integer number (810770160).

Almost surely, 2^5391621431 is an apocalyptic number.

5391621431 is a deficient number, since it is larger than the sum of its proper divisors (1094539849).

5391621431 is a wasteful number, since it uses less digits than its factorization.

5391621431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40538533.

The product of its digits is 19440, while the sum is 35.

The square root of 5391621431 is about 73427.6612115625. The cubic root of 5391621431 is about 1753.5027997377.

The spelling of 5391621431 in words is "five billion, three hundred ninety-one million, six hundred twenty-one thousand, four hundred thirty-one".