85512151377 has 12 divisors (see below), whose sum is σ = 123653746320. Its totient is φ = 56945242008.

The previous prime is 85512151349. The next prime is 85512151381. The reversal of 85512151377 is 77315121558.

85512151377 is a `hidden beast` number, since 8 + 5 + 5 + 121 + 513 + 7 + 7 = 666.

It is not a de Polignac number, because 85512151377 - 2¹⁴ = 85512134993 is a prime.

It is a super-2 number, since 2×85512151377² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85512151327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5229627 + ... + 5245952.

It is an arithmetic number, because the mean of its divisors is an integer number (10304478860).

Almost surely, 2^85512151377 is an apocalyptic number.

It is an amenable number.

85512151377 is a deficient number, since it is larger than the sum of its proper divisors (38141594943).

85512151377 is a wasteful number, since it uses less digits than its factorization.

85512151377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476492 (or 10476489 counting only the distinct ones).

The product of its digits is 294000, while the sum is 45.

The spelling of 85512151377 in words is "eighty-five billion, five hundred twelve million, one hundred fifty-one thousand, three hundred seventy-seven".