78377037075 has 24 divisors (see below), whose sum is σ = 143981521200. Its totient is φ = 41801086080.

The previous prime is 78377037071. The next prime is 78377037077. The reversal of 78377037075 is 57073077387.

It is not a de Polignac number, because 78377037075 - 2² = 78377037071 is a prime.

It is a super-2 number, since 2×78377037075² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78377037071) 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 23 ways as a sum of consecutive naturals, for example, 58056390 + ... + 58057739.

It is an arithmetic number, because the mean of its divisors is an integer number (5999230050).

Almost surely, 2^78377037075 is an apocalyptic number.

78377037075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78377037075 is a deficient number, since it is larger than the sum of its proper divisors (65604484125).

78377037075 is a wasteful number, since it uses less digits than its factorization.

78377037075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116114148 (or 116114137 counting only the distinct ones).

The product of its (nonzero) digits is 6050520, while the sum is 54.

The spelling of 78377037075 in words is "seventy-eight billion, three hundred seventy-seven million, thirty-seven thousand, seventy-five".