77270140426 has 32 divisors (see below), whose sum is σ = 125099605440. Its totient is φ = 35663037696.

The previous prime is 77270140399. The next prime is 77270140457. The reversal of 77270140426 is 62404107277.

It is a super-2 number, since 2×77270140426² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447601 + ... + 595723.

It is an arithmetic number, because the mean of its divisors is an integer number (3909362670).

Almost surely, 2^77270140426 is an apocalyptic number.

77270140426 is a deficient number, since it is larger than the sum of its proper divisors (47829465014).

77270140426 is a wasteful number, since it uses less digits than its factorization.

77270140426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148438.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 77270140426 in words is "seventy-seven billion, two hundred seventy million, one hundred forty thousand, four hundred twenty-six".