921453420501 has 16 divisors (see below), whose sum is σ = 1368283518720. Its totient is φ = 612876977280.

The previous prime is 921453420479. The next prime is 921453420541. The reversal of 921453420501 is 105024354129.

921453420501 is a `hidden beast` number, since 9 + 2 + 145 + 3 + 4 + 2 + 0 + 501 = 666.

It is not a de Polignac number, because 921453420501 - 2⁹ = 921453419989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921453420541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39579900 + ... + 39603173.

It is an arithmetic number, because the mean of its divisors is an integer number (85517719920).

Almost surely, 2^921453420501 is an apocalyptic number.

It is an amenable number.

921453420501 is a deficient number, since it is larger than the sum of its proper divisors (446830098219).

921453420501 is a wasteful number, since it uses less digits than its factorization.

921453420501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79183513 (or 79183507 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 921453420501 in words is "nine hundred twenty-one billion, four hundred fifty-three million, four hundred twenty thousand, five hundred one".