83578377061 has 8 divisors (see below), whose sum is σ = 83938474880. Its totient is φ = 83218699728.

The previous prime is 83578377059. The next prime is 83578377067. The reversal of 83578377061 is 16077387538.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83578377061 - 2¹ = 83578377059 is a prime.

It is a super-2 number, since 2×83578377061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83578376993 and 83578377011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83578377067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296560 + ... + 505078.

It is an arithmetic number, because the mean of its divisors is an integer number (10492309360).

Almost surely, 2^83578377061 is an apocalyptic number.

It is an amenable number.

83578377061 is a deficient number, since it is larger than the sum of its proper divisors (360097819).

83578377061 is a wasteful number, since it uses less digits than its factorization.

83578377061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210243.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 83578377061 in words is "eighty-three billion, five hundred seventy-eight million, three hundred seventy-seven thousand, sixty-one".