78925209955 has 8 divisors (see below), whose sum is σ = 95579154000. Its totient is φ = 62560899936.

The previous prime is 78925209931. The next prime is 78925209959. The reversal of 78925209955 is 55990252987.

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 78925209955 - 2⁷ = 78925209827 is a prime.

It is a super-2 number, since 2×78925209955² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78925209893 and 78925209902.

It is not an unprimeable number, because it can be changed into a prime (78925209959) 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, 72407905 + ... + 72408994.

It is an arithmetic number, because the mean of its divisors is an integer number (11947394250).

Almost surely, 2^78925209955 is an apocalyptic number.

78925209955 is a deficient number, since it is larger than the sum of its proper divisors (16653944045).

78925209955 is a wasteful number, since it uses less digits than its factorization.

78925209955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144817013.

The product of its (nonzero) digits is 20412000, while the sum is 61.

The spelling of 78925209955 in words is "seventy-eight billion, nine hundred twenty-five million, two hundred nine thousand, nine hundred fifty-five".