401634552817513 has 32 divisors (see below), whose sum is σ = 425285889380352. Its totient is φ = 378510257664000.

The previous prime is 401634552817493. The next prime is 401634552817583. The reversal of 401634552817513 is 315718255436104.

It is a cyclic number.

It is not a de Polignac number, because 401634552817513 - 2⁴¹ = 399435529561961 is a prime.

It is a super-2 number, since 2×401634552817513² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401634552817583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6917905981 + ... + 6917964037.

It is an arithmetic number, because the mean of its divisors is an integer number (13290184043136).

Almost surely, 2^{401634552817513} is an apocalyptic number.

It is an amenable number.

401634552817513 is a deficient number, since it is larger than the sum of its proper divisors (23651336562839).

401634552817513 is a wasteful number, since it uses less digits than its factorization.

401634552817513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62425.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 401634552817513 in words is "four hundred one trillion, six hundred thirty-four billion, five hundred fifty-two million, eight hundred seventeen thousand, five hundred thirteen".