878142137708465 has 16 divisors (see below), whose sum is σ = 1227032032854528. Its totient is φ = 590793201001536.

The previous prime is 878142137708443. The next prime is 878142137708467. The reversal of 878142137708465 is 564807731241878.

It is a cyclic number.

It is not a de Polignac number, because 878142137708465 - 2¹⁴ = 878142137692081 is a prime.

It is a super-3 number, since 3×878142137708465³ (a number of 46 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878142137708467) 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, 236695992137 + ... + 236695995846.

It is an arithmetic number, because the mean of its divisors is an integer number (76689502053408).

Almost surely, 2^{878142137708465} is an apocalyptic number.

It is an amenable number.

878142137708465 is a deficient number, since it is larger than the sum of its proper divisors (348889895146063).

878142137708465 is a wasteful number, since it uses less digits than its factorization.

878142137708465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473391988048.

The product of its (nonzero) digits is 505774080, while the sum is 71.

The spelling of 878142137708465 in words is "eight hundred seventy-eight trillion, one hundred forty-two billion, one hundred thirty-seven million, seven hundred eight thousand, four hundred sixty-five".