77543211453 has 16 divisors (see below), whose sum is σ = 103740860160. Its totient is φ = 51520594496.

The previous prime is 77543211391. The next prime is 77543211479. The reversal of 77543211453 is 35411234577.

It is a cyclic number.

It is not a de Polignac number, because 77543211453 - 2¹⁰ = 77543210429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77543211553) 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, 6612151 + ... + 6623867.

It is an arithmetic number, because the mean of its divisors is an integer number (6483803760).

Almost surely, 2^77543211453 is an apocalyptic number.

It is an amenable number.

77543211453 is a deficient number, since it is larger than the sum of its proper divisors (26197648707).

77543211453 is a wasteful number, since it uses less digits than its factorization.

77543211453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18996.

The product of its digits is 352800, while the sum is 42.

It can be divided in two parts, 775432 and 11453, that added together give a triangular number (786885 = T₁₂₅₄).

The spelling of 77543211453 in words is "seventy-seven billion, five hundred forty-three million, two hundred eleven thousand, four hundred fifty-three".