402525420145405 has 8 divisors (see below), whose sum is σ = 483190926146784. Its totient is φ = 321913388134800.

The previous prime is 402525420145379. The next prime is 402525420145483. The reversal of 402525420145405 is 504541024525204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402525420145405 - 2²⁵ = 402525386590973 is a prime.

It is a super-2 number, since 2×402525420145405² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13368481131 + ... + 13368511240.

It is an arithmetic number, because the mean of its divisors is an integer number (60398865768348).

Almost surely, 2^{402525420145405} is an apocalyptic number.

It is an amenable number.

402525420145405 is a deficient number, since it is larger than the sum of its proper divisors (80665506001379).

402525420145405 is a wasteful number, since it uses less digits than its factorization.

402525420145405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26736995387.

The product of its (nonzero) digits is 1280000, while the sum is 43.

The spelling of 402525420145405 in words is "four hundred two trillion, five hundred twenty-five billion, four hundred twenty million, one hundred forty-five thousand, four hundred five".