1421625012461 has 8 divisors (see below), whose sum is σ = 1519864092864. Its totient is φ = 1325009718720.

The previous prime is 1421625012449. The next prime is 1421625012481. The reversal of 1421625012461 is 1642105261241.

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

It is a de Polignac number, because none of the positive numbers 2^k-1421625012461 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 (1421625012481) 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, 405944855 + ... + 405948356.

It is an arithmetic number, because the mean of its divisors is an integer number (189983011608).

Almost surely, 2^{1421625012461} is an apocalyptic number.

It is an amenable number.

1421625012461 is a deficient number, since it is larger than the sum of its proper divisors (98239080403).

1421625012461 is a wasteful number, since it uses less digits than its factorization.

1421625012461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811893331.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 1421625012461 in words is "one trillion, four hundred twenty-one billion, six hundred twenty-five million, twelve thousand, four hundred sixty-one".