70740377771 has 12 divisors (see below), whose sum is σ = 82294284888. Its totient is φ = 60631324992.

The previous prime is 70740377761. The next prime is 70740377803. The reversal of 70740377771 is 17777304707.

It is a happy number.

It is not a de Polignac number, because 70740377771 - 2¹⁴ = 70740361387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70740377761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1439315 + ... + 1487651.

It is an arithmetic number, because the mean of its divisors is an integer number (6857857074).

Almost surely, 2^70740377771 is an apocalyptic number.

70740377771 is a deficient number, since it is larger than the sum of its proper divisors (11553907117).

70740377771 is a wasteful number, since it uses less digits than its factorization.

70740377771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78218 (or 78211 counting only the distinct ones).

The product of its (nonzero) digits is 1411788, while the sum is 50.

The spelling of 70740377771 in words is "seventy billion, seven hundred forty million, three hundred seventy-seven thousand, seven hundred seventy-one".