354454157653 has 4 divisors (see below), whose sum is σ = 357766813440. Its totient is φ = 351141501868.

The previous prime is 354454157623. The next prime is 354454157657. The reversal of 354454157653 is 356751454453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356751454453 = 2053 ⋅173770801.

It is a cyclic number.

It is not a de Polignac number, because 354454157653 - 2³⁷ = 217015204181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354454157653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354454157657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656327733 + ... + 1656327946.

It is an arithmetic number, because the mean of its divisors is an integer number (89441703360).

Almost surely, 2^354454157653 is an apocalyptic number.

It is an amenable number.

354454157653 is a deficient number, since it is larger than the sum of its proper divisors (3312655787).

354454157653 is a wasteful number, since it uses less digits than its factorization.

354454157653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312655786.

The product of its digits is 15120000, while the sum is 52.

The spelling of 354454157653 in words is "three hundred fifty-four billion, four hundred fifty-four million, one hundred fifty-seven thousand, six hundred fifty-three".