1354997358840 has 64 divisors (see below), whose sum is σ = 4065069772800. Its totient is φ = 361325722752.

The previous prime is 1354997358823. The next prime is 1354997358899. The reversal of 1354997358840 is 488537994531.

It is a happy number.

It is a super-2 number, since 2×1354997358840² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10630929 + ... + 10757631.

It is an arithmetic number, because the mean of its divisors is an integer number (63516715200).

Almost surely, 2^{1354997358840} is an apocalyptic number.

1354997358840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1354997358840 is an abundant number, since it is smaller than the sum of its proper divisors (2710072413960).

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

1354997358840 is a wasteful number, since it uses less digits than its factorization.

1354997358840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215836 (or 215832 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 1354997358840 in words is "one trillion, three hundred fifty-four billion, nine hundred ninety-seven million, three hundred fifty-eight thousand, eight hundred forty".