2154462420551 has 8 divisors (see below), whose sum is σ = 2475134091264. Its totient is φ = 1837013581080.

The previous prime is 2154462420547. The next prime is 2154462420557. The reversal of 2154462420551 is 1550242644512.

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 2154462420551 - 2² = 2154462420547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154462420499 and 2154462420508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154462420557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805706375 + ... + 805709048.

It is an arithmetic number, because the mean of its divisors is an integer number (309391761408).

Almost surely, 2^{2154462420551} is an apocalyptic number.

2154462420551 is a deficient number, since it is larger than the sum of its proper divisors (320671670713).

2154462420551 is a wasteful number, since it uses less digits than its factorization.

2154462420551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611415621.

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 2154462420551 in words is "two trillion, one hundred fifty-four billion, four hundred sixty-two million, four hundred twenty thousand, five hundred fifty-one".