854398453077 has 128 divisors (see below), whose sum is σ = 1404446883840. Its totient is φ = 510074496000.

The previous prime is 854398453049. The next prime is 854398453109. The reversal of 854398453077 is 770354893458.

854398453077 is a `hidden beast` number, since 8 + 5 + 4 + 3 + 98 + 4 + 530 + 7 + 7 = 666.

It is not a de Polignac number, because 854398453077 - 2¹⁰ = 854398452053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854398453277) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1236466302 + ... + 1236466992.

It is an arithmetic number, because the mean of its divisors is an integer number (10972241280).

Almost surely, 2^854398453077 is an apocalyptic number.

It is an amenable number.

854398453077 is a deficient number, since it is larger than the sum of its proper divisors (550048430763).

854398453077 is a wasteful number, since it uses less digits than its factorization.

854398453077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 854398453077 in words is "eight hundred fifty-four billion, three hundred ninety-eight million, four hundred fifty-three thousand, seventy-seven".