400154351125 has 16 divisors (see below), whose sum is σ = 515502074880. Its totient is φ = 309796914000.

The previous prime is 400154351123. The next prime is 400154351161. The reversal of 400154351125 is 521153451004.

It is not a de Polignac number, because 400154351125 - 2¹ = 400154351123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400154351123) 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, 51628945 + ... + 51636694.

It is an arithmetic number, because the mean of its divisors is an integer number (32218879680).

Almost surely, 2^400154351125 is an apocalyptic number.

It is an amenable number.

400154351125 is a deficient number, since it is larger than the sum of its proper divisors (115347723755).

400154351125 is a wasteful number, since it uses less digits than its factorization.

400154351125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103265685 (or 103265675 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 400154351125 in words is "four hundred billion, one hundred fifty-four million, three hundred fifty-one thousand, one hundred twenty-five".