421770766707 has 24 divisors (see below), whose sum is σ = 626086004544. Its totient is φ = 273407871744.

The previous prime is 421770766679. The next prime is 421770766777. The reversal of 421770766707 is 707667077124.

It is a happy number.

It is not a de Polignac number, because 421770766707 - 2⁷ = 421770766579 is a prime.

It is a super-2 number, since 2×421770766707² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421770766777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127083 + ... + 927195.

It is an arithmetic number, because the mean of its divisors is an integer number (26086916856).

Almost surely, 2^421770766707 is an apocalyptic number.

421770766707 is a deficient number, since it is larger than the sum of its proper divisors (204315237837).

421770766707 is a wasteful number, since it uses less digits than its factorization.

421770766707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801739 (or 801736 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 54.

The spelling of 421770766707 in words is "four hundred twenty-one billion, seven hundred seventy million, seven hundred sixty-six thousand, seven hundred seven".