2554357766921 has 8 divisors (see below), whose sum is σ = 2573287242624. Its totient is φ = 2535497758000.

The previous prime is 2554357766899. The next prime is 2554357766929. The reversal of 2554357766921 is 1296677534552.

2554357766921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2554357766921 - 2¹⁴ = 2554357750537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2554357766929) 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, 17292881 + ... + 17439966.

It is an arithmetic number, because the mean of its divisors is an integer number (321660905328).

Almost surely, 2^{2554357766921} is an apocalyptic number.

It is an amenable number.

2554357766921 is a deficient number, since it is larger than the sum of its proper divisors (18929475703).

2554357766921 is a wasteful number, since it uses less digits than its factorization.

2554357766921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34733391.

The product of its digits is 95256000, while the sum is 62.

The spelling of 2554357766921 in words is "two trillion, five hundred fifty-four billion, three hundred fifty-seven million, seven hundred sixty-six thousand, nine hundred twenty-one".