5401261613 has 32 divisors (see below), whose sum is σ = 6359040000. Its totient is φ = 4535637120.

The previous prime is 5401261577. The next prime is 5401261633. The reversal of 5401261613 is 3161621045.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5401261613 - 2⁶ = 5401261549 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 (5401261633) 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, 1564313 + ... + 1567761.

It is an arithmetic number, because the mean of its divisors is an integer number (198720000).

Almost surely, 2^5401261613 is an apocalyptic number.

It is an amenable number.

5401261613 is a deficient number, since it is larger than the sum of its proper divisors (957778387).

5401261613 is a wasteful number, since it uses less digits than its factorization.

5401261613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 5401261613 is about 73493.2759713431. The cubic root of 5401261613 is about 1754.5472611329.

Adding to 5401261613 its reverse (3161621045), we get a palindrome (8562882658).

The spelling of 5401261613 in words is "five billion, four hundred one million, two hundred sixty-one thousand, six hundred thirteen".