40009770154356 has 48 divisors (see below), whose sum is σ = 94539736166400. Its totient is φ = 13167510232032.

The previous prime is 40009770154339. The next prime is 40009770154357. The reversal of 40009770154356 is 65345107790004.

It is a super-2 number, since 2×40009770154356² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40009770154299 and 40009770154308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40009770154357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50456361 + ... + 51243183.

It is an arithmetic number, because the mean of its divisors is an integer number (1969577836800).

Almost surely, 2^{40009770154356} is an apocalyptic number.

It is an amenable number.

40009770154356 is an abundant number, since it is smaller than the sum of its proper divisors (54529966012044).

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

40009770154356 is a wasteful number, since it uses less digits than its factorization.

40009770154356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840548 (or 840546 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 40009770154356 in words is "forty trillion, nine billion, seven hundred seventy million, one hundred fifty-four thousand, three hundred fifty-six".