654437734457 has 16 divisors (see below), whose sum is σ = 746948336400. Its totient is φ = 568019085312.

The previous prime is 654437734439. The next prime is 654437734481. The reversal of 654437734457 is 754437734456.

654437734457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 107157367801 + 547280366656 = 327349^2 + 739784^2 .

It is a cyclic number.

It is not a de Polignac number, because 654437734457 - 2¹⁶ = 654437668921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654437734396 and 654437734405.

It is not an unprimeable number, because it can be changed into a prime (654437734417) 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, 1179638 + ... + 1643295.

It is an arithmetic number, because the mean of its divisors is an integer number (46684271025).

Almost surely, 2^654437734457 is an apocalyptic number.

It is an amenable number.

654437734457 is a deficient number, since it is larger than the sum of its proper divisors (92510601943).

654437734457 is a wasteful number, since it uses less digits than its factorization.

654437734457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824012.

The product of its digits is 118540800, while the sum is 59.

Subtracting 654437734457 from its reverse (754437734456), we obtain a palindrome (99999999999).

The spelling of 654437734457 in words is "six hundred fifty-four billion, four hundred thirty-seven million, seven hundred thirty-four thousand, four hundred fifty-seven".