1420757307771 has 12 divisors (see below), whose sum is σ = 1999292833512. Its totient is φ = 897320404224.

The previous prime is 1420757307769. The next prime is 1420757307793. The reversal of 1420757307771 is 1777037570241.

It is a happy number.

It is not a de Polignac number, because 1420757307771 - 2¹ = 1420757307769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420757302771) 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, 655934886 + ... + 655937051.

It is an arithmetic number, because the mean of its divisors is an integer number (166607736126).

Almost surely, 2^{1420757307771} is an apocalyptic number.

1420757307771 is a deficient number, since it is larger than the sum of its proper divisors (578535525741).

1420757307771 is a wasteful number, since it uses less digits than its factorization.

1420757307771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311871978 (or 1311871959 counting only the distinct ones).

The product of its (nonzero) digits is 2016840, while the sum is 51.

The spelling of 1420757307771 in words is "one trillion, four hundred twenty billion, seven hundred fifty-seven million, three hundred seven thousand, seven hundred seventy-one".