78772070842761 has 8 divisors (see below), whose sum is σ = 105038739780480. Its totient is φ = 52510057900112.

The previous prime is 78772070842741. The next prime is 78772070842811. The reversal of 78772070842761 is 16724807027787.

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 78772070842761 - 2¹¹ = 78772070840713 is a prime.

It is a super-2 number, since 2×78772070842761² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78772070842692 and 78772070842701.

It is not an unprimeable number, because it can be changed into a prime (78772070842741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163959290 + ... + 1164026963.

It is an arithmetic number, because the mean of its divisors is an integer number (13129842472560).

Almost surely, 2^{78772070842761} is an apocalyptic number.

It is an amenable number.

78772070842761 is a deficient number, since it is larger than the sum of its proper divisors (26266668937719).

78772070842761 is a wasteful number, since it uses less digits than its factorization.

78772070842761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327997535.

The product of its (nonzero) digits is 103262208, while the sum is 66.

The spelling of 78772070842761 in words is "seventy-eight trillion, seven hundred seventy-two billion, seventy million, eight hundred forty-two thousand, seven hundred sixty-one".