40077131421 has 32 divisors (see below), whose sum is σ = 57426048000. Its totient is φ = 24805347840.

The previous prime is 40077131417. The next prime is 40077131467. The reversal of 40077131421 is 12413177004.

It is not a de Polignac number, because 40077131421 - 2² = 40077131417 is a prime.

It is a super-2 number, since 2×40077131421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40077131401) 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 31 ways as a sum of consecutive naturals, for example, 376105 + ... + 470753.

It is an arithmetic number, because the mean of its divisors is an integer number (1794564000).

Almost surely, 2^40077131421 is an apocalyptic number.

It is an amenable number.

40077131421 is a deficient number, since it is larger than the sum of its proper divisors (17348916579).

40077131421 is a wasteful number, since it uses less digits than its factorization.

40077131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94869.

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 40077131421 in words is "forty billion, seventy-seven million, one hundred thirty-one thousand, four hundred twenty-one".