83645157348774 has 36 divisors (see below), whose sum is σ = 210819937401684. Its totient is φ = 23898616385112.

The previous prime is 83645157348749. The next prime is 83645157348799. The reversal of 83645157348774 is 47784375154638.

83645157348774 is a `hidden beast` number, since 8 + 3 + 6 + 4 + 5 + 1 + 5 + 73 + 487 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (83645157348749) and next prime (83645157348799).

It is a super-2 number, since 2×83645157348774² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47417888772 + ... + 47417890535.

It is an arithmetic number, because the mean of its divisors is an integer number (5856109372269).

Almost surely, 2^{83645157348774} is an apocalyptic number.

83645157348774 is an abundant number, since it is smaller than the sum of its proper divisors (127174780052910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83645157348774 is a wasteful number, since it uses less digits than its factorization.

83645157348774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94835779329 (or 94835779319 counting only the distinct ones).

The product of its digits is 1896652800, while the sum is 72.

The spelling of 83645157348774 in words is "eighty-three trillion, six hundred forty-five billion, one hundred fifty-seven million, three hundred forty-eight thousand, seven hundred seventy-four".