40770777432 has 128 divisors (see below), whose sum is σ = 127292659200. Its totient is φ = 10571904000.

The previous prime is 40770777419. The next prime is 40770777449. The reversal of 40770777432 is 23477707704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092294 + ... + 1129002.

It is an arithmetic number, because the mean of its divisors is an integer number (994473900).

Almost surely, 2^40770777432 is an apocalyptic number.

40770777432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40770777432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63646329600).

40770777432 is an abundant number, since it is smaller than the sum of its proper divisors (86521881768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40770777432 is a wasteful number, since it uses less digits than its factorization.

40770777432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37337 (or 37333 counting only the distinct ones).

The product of its (nonzero) digits is 1613472, while the sum is 48.

The spelling of 40770777432 in words is "forty billion, seven hundred seventy million, seven hundred seventy-seven thousand, four hundred thirty-two".