20354211247437 has 16 divisors (see below), whose sum is σ = 30154530386560. Its totient is φ = 13569409656000.

The previous prime is 20354211247429. The next prime is 20354211247493. The reversal of 20354211247437 is 73474211245302.

It is a happy number.

20354211247437 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 421 + 124 + 74 + 37 = 666.

It is not a de Polignac number, because 20354211247437 - 2³ = 20354211247429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20354211247392 and 20354211247401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354211240437) 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, 4379112 + ... + 7738542.

It is an arithmetic number, because the mean of its divisors is an integer number (1884658149160).

Almost surely, 2^{20354211247437} is an apocalyptic number.

20354211247437 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20354211247437 is a deficient number, since it is larger than the sum of its proper divisors (9800319139123).

20354211247437 is a wasteful number, since it uses less digits than its factorization.

20354211247437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583841 (or 3583835 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 20354211247437 in words is "twenty trillion, three hundred fifty-four billion, two hundred eleven million, two hundred forty-seven thousand, four hundred thirty-seven".