385525149777 has 32 divisors (see below), whose sum is σ = 582661416960. Its totient is φ = 251879256720.

The previous prime is 385525149739. The next prime is 385525149797. The reversal of 385525149777 is 777941525583.

It is a happy number.

385525149777 is a `hidden beast` number, since 3 + 8 + 5 + 525 + 14 + 97 + 7 + 7 = 666.

It is not a de Polignac number, because 385525149777 - 2¹⁰ = 385525148753 is a prime.

It is a super-2 number, since 2×385525149777² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (385525149797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281983 + ... + 922260.

It is an arithmetic number, because the mean of its divisors is an integer number (18208169280).

Almost surely, 2^385525149777 is an apocalyptic number.

It is an amenable number.

385525149777 is a deficient number, since it is larger than the sum of its proper divisors (197136267183).

385525149777 is a wasteful number, since it uses less digits than its factorization.

385525149777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204490 (or 1204484 counting only the distinct ones).

The product of its digits is 74088000, while the sum is 63.

The spelling of 385525149777 in words is "three hundred eighty-five billion, five hundred twenty-five million, one hundred forty-nine thousand, seven hundred seventy-seven".