2642454303621 has 16 divisors (see below), whose sum is σ = 3843820008000. Its totient is φ = 1601383243520.

The previous prime is 2642454303551. The next prime is 2642454303641. The reversal of 2642454303621 is 1263034542462.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2642454303621 - 2⁹ = 2642454303109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642454303641) 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, 2088996 + ... + 3106253.

It is an arithmetic number, because the mean of its divisors is an integer number (240238750500).

Almost surely, 2^{2642454303621} is an apocalyptic number.

It is an amenable number.

2642454303621 is a deficient number, since it is larger than the sum of its proper divisors (1201365704379).

2642454303621 is a wasteful number, since it uses less digits than its factorization.

2642454303621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210676.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 2642454303621 in words is "two trillion, six hundred forty-two billion, four hundred fifty-four million, three hundred three thousand, six hundred twenty-one".