1260658027421 has 8 divisors (see below), whose sum is σ = 1357787911200. Its totient is φ = 1163550456432.

The previous prime is 1260658027417. The next prime is 1260658027457. The reversal of 1260658027421 is 1247208560621.

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

It is not a de Polignac number, because 1260658027421 - 2² = 1260658027417 is a prime.

It is a super-2 number, since 2×1260658027421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260658027621) 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, 5460755 + ... + 5686928.

It is an arithmetic number, because the mean of its divisors is an integer number (169723488900).

Almost surely, 2^{1260658027421} is an apocalyptic number.

It is an amenable number.

1260658027421 is a deficient number, since it is larger than the sum of its proper divisors (97129883779).

1260658027421 is a wasteful number, since it uses less digits than its factorization.

1260658027421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156395.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 1260658027421 in words is "one trillion, two hundred sixty billion, six hundred fifty-eight million, twenty-seven thousand, four hundred twenty-one".