86701391401 has 9 divisors (see below), whose sum is σ = 87097458231. Its totient is φ = 86307121512.

The previous prime is 86701391341. The next prime is 86701391411. The reversal of 86701391401 is 10419310768.

The square root of 86701391401 is 294451.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14943840025 + 71757551376 = 122245^2 + 267876^2 .

It is not a de Polignac number, because 86701391401 - 2²¹ = 86699294249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86701391411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81562396 + ... + 81563458.

It is an arithmetic number, because the mean of its divisors is an integer number (9677495359).

Almost surely, 2^86701391401 is an apocalyptic number.

86701391401 is the 294451-st square number.

86701391401 is the 147226-th centered octagonal number.

It is an amenable number.

86701391401 is a deficient number, since it is larger than the sum of its proper divisors (396066830).

86701391401 is an frugal number, since it uses more digits than its factorization.

86701391401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 86701391401 in words is "eighty-six billion, seven hundred one million, three hundred ninety-one thousand, four hundred one".